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How to clean metal coins. How to clean copper coins at home. Special cleaner for coins

According to statistics, many people of different ages are interested in numismatics, which makes them "hunt" for rare coins. Almost any metal can oxidize over time, which affects appearance... In this case, information on how to clean your coins will be very helpful.

Cleaning coins at home

There are a huge number of techniques used to remove various contaminants from coins. They are used by both collectors and people looking for treasures. It is important to consider a number of tips on how to clean old coins at home:

  1. The choice of the cleaning method should be based on the alloy from which the contaminated specimen is made. The thing is that some funds can provoke reactions that spoil the coins. Do not use formulations with coarse abrasive particles, as they will leave scratches on the surface.
  2. It is not recommended to clean coins with concentrated acids. This is especially true for specimens made of copper.
  3. Please note that for some coins, the presence of patina is an adornment that gives a noble appearance and its removal will lead to a decrease in value.
  4. Describing how to properly clean coins, it is worth pointing out that before carrying out the procedure, it is recommended to check the selected tool on less valuable items made of a similar material.

How do I clean silver coins?

You can use baking soda and ammonia solution to clean your precious coins. If these methods fail, then formic acid can be used, which can remove dirt if heated to 70 ° C. This product will help remove rust and other contaminants. Figuring out how to clean silver coin, it is worth pointing out that there is a means - silbertuschbader, which is used by specialists for cleaning silver items.

Cleaning Copper Coins

Copper products are considered the most capricious, so the choice of a suitable method should be approached carefully. The most popular options are based on the use of vinegar and soap. These methods are described below, and the cleaning of copper coins from greenery can be carried out as follows:

  1. Vaseline oil. In this tool, it is necessary to boil the products until the contamination disappears. At the end of the procedure, rinse them in alcohol and wipe with a cloth.
  2. Hydrogen peroxide. To make your coins shiny, it is recommended to mix 30 ml of hydrogen peroxide, a small spoonful of ammonia and 200 ml of water. Place coins in the solution for 15 minutes. and wipe with a soft cloth.

How to clean bimetallic coins?

In the manufacture of coins, for example, commemorative coins, two different metals are used: steel or silver is used for the central part, and copper, gold or different alloys are used for edging. There is simple ways how to clean coins at home:

  1. Detergent. Good results with minor contamination are given by the popular dish detergent - "Fairy", you need to stir 1 tbsp of water in 1 liter of water. spoon. Put coins in the prepared solution for an hour, and then wipe with a flannel cloth.
  2. Toothpaste. Squeeze a pea of ​​ordinary paste onto a soft-bristled brush and wipe the coin with it without pressing. Cleaning of bimetallic coins ends with rinsing in water. There are reviews that after a while the surface may fade, and to give the product a shine, put it for 5 minutes. in a solution of formic acid 14% or alcohol. At the end of the procedure, polish the coin.
  3. Paste GOI. This product contains small abrasive particles that can remove dirt and oxides. It is better to use paste for inexpensive coins. Brushing can be done, but it is best to use a mechanical engraver with a felt attachment. Turnovers should be set at 10-15 thousand per minute.

How to clean cupronickel coins?

The alloy is very similar to precious metals and it also blackens and oxidizes. You can use different ways to add shine and for those who are interested in how to clean old coins, the following methods are offered:

  1. Dish powder. To remove dirt, you must first moisten the coin in water, and then apply powder to it. All that remains is to rub the surface with a sponge and leave everything for a while and rinse in water. Wear gloves before proceeding.
  2. Ash. Continuing to explain how to clean old coins, an unusual way to remove patina should be mentioned. It involves the use of cigarette ash. First, dip a coin in water and apply ash to it. Leave everything for 20 minutes, and then, rub the gruel into a coin and rinse.

How do I clean brass coins?

Money made from copper-zinc alloy is not particularly susceptible to corrosion, but cleaning may be necessary from time to time. If you are interested in how to clean brass coins at home, then you should know that such means will be effective: thick soapy water, citric acid and Coca-Cola. In addition, you can use the following options:

  1. Oxalic acid. You can buy a product in the store that will quickly remove plaque. It is necessary to immerse coins for 5-10 minutes, then they must be washed in water.
  2. Trilon-B. Dissolve the specified agent in warm water, taking into account the proportion of 1:10. Dip a coin into the solution and periodically rinse it in running water and check the condition. Soaking is repeated if necessary.

Cleaning Aluminum Bronze Coins

Items made from the specified material can be cleaned using the options described for copper coins. There are several more methods for cleaning old coins at home:

  1. Coca Cola. A popular drink is a good solvent for dirt, which must be poured over the products and left for a week. After the allotted time, rinse the coins in water, and the result will be incredible.
  2. Bathroom cleaner. Coins need to be immersed in the solution for just a couple of minutes, and then rinsed.

Methods for cleaning coins

There are several methods for cleaning coins using the tools available at home. Through experimentation, you can find the most effective option for yourself. There is a universal coin cleaner that includes several ingredients at once. It can be used to remove green plaque, rust and other oxides:

  1. Mix 25 ml of soap and soda solution and add 75 ml of toothpaste and 25 ml of ammonia there.
  2. Dip all the coins into the finished product and leave them there until they are completely clean. Take them out from time to time and brush them with a toothbrush to assess the result. Finally, rinse the coins with water.

Cleaning coins by electrolysis

To carry out the procedure, you will need electrical devices, so it is important to take into account the safety rules. Describing how to clean Soviet coins, it is worth noting that when using electrolysis, the risk of spoiling the product significantly increases. It is necessary to carry out the procedure in a well-lit and ventilated area. Always protect your hands and eyes. There are instructions on how to clean coins by electrolysis:

  1. Prepare a 6-12 V power supply. Cut the plugs and cut the wires in two. Clean the ends and attach the copper strands to the clamps.
  2. Take a plastic container and fill it with brine by combining 1 liter of water with 1 tbsp. a spoonful of salt.
  3. Plug in the power supply and dip the clamps in saline solution. A hiss will be heard at the “+” terminal and should be connected to the coin. The cleaning process will take about 10 minutes.

Cleaning coins with ammonia

To deal with copper oxides, chemical cleaning methods must be used. For example, you can use a 5-15% ammonia solution, which is popularly called ammonia. Please note that this product has a pungent odor, so use it carefully. There are several features of how to clean a coin to a shine in ammonia:

  1. Pour the product into a plastic container and place coins in there, which should be turned periodically. Please note that you cannot take them out immediately, as the product may deteriorate.
  2. When the cleaning is completed, it is necessary to pour water into the ammonia, thereby reducing the concentration. Only when the solution is weak can you take out the coins and rinse them under running water.

Cleaning coins with soap

One of the simplest methods, which has been used for more than a dozen years, involves application. It not only removes dirt well, but is also safe for the product. When figuring out how you can clean your coins, you should consider the instructions for using the soap:

  1. Pour boiling water into a plastic container and rub 70% of laundry soap. Close the container and leave until the mixture becomes thick.
  2. After that, send in the resulting mass of coins and leave them for two days. After the time has passed, remove them and clean them using a soft toothbrush. If dirt remains, the procedure can be repeated.

Cleaning coins with citric acid

You can clean your coins and save money with citric acid. It removes dirt and makes coins look like they were minted. Please note that the prepared solution can be aggressive towards metal, so it is important to constantly monitor the process. Copper and silver coins are cleaned in different ways. When using copper products, consider:

  1. Pour citric acid into a plastic container and pour in water. The concentration of the solution can be selected independently, taking into account the degree of contamination.
  2. Stir the solution until the acid is completely dissolved and put coins in it. When one side is clear, flip it over to the other side.
  3. During the procedure, citric acid also removes the patina, which can be restored independently if desired. It is necessary to place the peeled coins on the back of the ventilation grill in the kitchen for several days.

Another will be instructions on how to clean coins with citric acid if they are made of silver:

  1. Pour 200 ml of warm water into a plastic container and add 2 teaspoons of citric acid. Stir until dissolved.
  2. Dip coins in the solution for 10 minutes, and then remove and wipe them with a toothbrush. It is important not to leave them in the solution for a long time.

Can I clean coins with vinegar?

If the coins are of little value, then a vinegar solution can be used, which can discolor or corrode the surface. In addition, there is an opinion that after such cleaning, the products will deteriorate more. You can just put coins in a 10% vinegar solution for a day, but there is another way. Describing how to clean an old coin, you should suggest an option using a solution of vinegar and salt:

  1. Take 1/4 tbsp. vinegar and add 5 g of salt. If there are a lot of coins, then use 0.5 tbsp. vinegar and 15 g of salt. Stir until the salt is completely dissolved. Place the coins in the solution so that they lie separately from each other. Duration of soaking - 5 minutes. If some of the dirt has not come off, then brush the coins with another brush. It remains to rinse them in strong water.

Cleaning coins with soda

An effective method is the alkaline cleaning method, which is suitable for copper and silver coins. For those who are interested in how to clean coins with soda, it is worth knowing that there are two ways:

  1. Mechanical cleaning of coins involves creating a gruel at the first stage, for which add a little water to a spoonful of soda. Apply the resulting mixture to a coin, then remove dirt using a soft brush. Soda can be used after acid scrubbing to quench the reaction.
  2. To get a good result, you can combine cleaning with a solution of soap and soda. After cleaning, lubricate the surface with alcohol and petroleum jelly.

Every numismatist is familiar with cleaning coins at home. It is necessary to resort to it if metal money has been lying in the ground for a long time, has traces of organic pollution, has oxidized and is covered with a dark coating. After cleaning, the coins are protected with a layer of patina, they again acquire a decent look, allowing you to better see all the details of the engraving and see the shine of the metal.

There are differing opinions on cleaning, with some collectors believing that harsh substances that attack coins can permanently ruin them. Perhaps this is so if you use strong means and untested methods, but sometimes, you simply cannot do without a painstaking procedure for restoring the original appearance of the product. In this case, simple methods of cleaning coins at home with improvised means will help.

How to clean USSR coins

Coins issued since Soviet times have turned into interesting collections, carefully kept by numismatists. It's been a long time since they were released, so they've changed a lot. Without proper care, that kind of money will lose its value, cleaning the coins of the USSR at home will help preserve wonderful specimens that are inextricably linked with the history of our country.

Chemical preparations cannot be used without certain skills, and it is not easy to find them, but a mixture obtained from ammonia, soda and toothpaste will effectively cope with pollution.
You can prepare a large amount of the product at once, store it in a tightly closed container and, if necessary, apply a small portion to the coin that needs cleaning. After application, the product must be rubbed with a soft brush, rinsed thoroughly with warm water and dried well.

A solution of water and soda is also useful for removing contaminants of varying degrees. The coin should be held in it for several hours until the metal becomes clean and shiny, then rinsed and completely removed from moisture.

One more efficient way is to use half a teaspoon of citric acid in a glass of hot water. A coin is placed in such a solution for a couple of seconds, then taken out, washed and thoroughly wiped with a dry, soft cloth. Do not leave the product in citric acid for a long time, so as not to damage the metal.

How to clean copper coins

The following methods can be used to clean copper coins at home without damaging them:


How to clean bronze coins

There are many ways to clean bronze coins, and they are all similar to actions to return copper money to its original appearance. You can use a solution of citric acid, soda. It is also permissible to use ammonia and trilon, only then you should apply toothpaste to the coin and rinse with water. This will help get rid of the browning caused by the aforementioned substances.

Do not use nitric and sulfuric acid. Aggressive components are only suitable for coins that have little value and are in poor condition. If the patina is removed from the coin during cleaning, it can be recreated with sulfuric ointment. First, petroleum jelly is applied to the bronze item, then using a short-cut toothbrush, apply a thin layer of sulfuric ointment and place the coin under a stream of warm water. It will begin to darken, the formed protective layer will protect the metal from oxidation. The remnants of the ointment are removed with water and soap.

A few more ways to clean old coins

If you still have not chosen a way to clean old coins at home, you can resort to using vinegar and toothpaste. These substances are applied with a brush, and plaque is removed from the surface of the product with light circular movements. It is a good idea to completely immerse a steel coin with an electroplated coating in a container of vinegar for 5-10 minutes. It is not worth keeping it for too long and it is imperative to rinse it well at the end of the procedure.

To put in order the coins of tsarist times, on which there are many pieces of earth, boiling in water with soda is suitable. Take one tablespoon of baking soda per 200 ml of water. You need to boil for 30-35 minutes, you can repeat the action several times if the result is not satisfactory.

To renew silver coins with a large amount of oxides, a solution of ammonia with water in a ratio of 9: 1 is used, where the product is placed for about an hour. You can also replace ammonia with soda, in the amount of 30 g per 100 ml of water.

Rules for drying coins after cleaning

It is not enough to know how to clean coins, you need to be able to dry them well after the mentioned process. Their safety and proper appearance depend on this. After washing, metal money can be placed on a paper towel, rolled several times and blotted with it from above. Use a soft cloth to wipe off moisture and rub the product with it. If there is a drying cabinet, then it can be useful for drying coins, but at a temperature not higher than one hundred degrees.

What coins shouldn't you clean?

We have already presented information on how to clean coins at home, but it may not always come in handy. Some coins do not need deep cleaning at all. If the specimen has an even patina without chips, oxides, then it will be enough to rinse it with warm water and soap, rubbing it with a toothbrush. Dirt and dust will go away, all that remains is to dry it completely and send it to storage. Deeper cleaning may not have the best effect on the coin, finally ruining it.

How do I store cleaned coins?

In order not to subject old coins to frequent cleaning, you should take care of their proper storage. Valuable items should be kept in a dry, clean place and hidden from exposure to sunlight. Collectors choose different storage methods, it is difficult to say which one is better:

  • Some keep their collections in albums with clear plastic pockets for coins;
  • There are widespread cardboard tablets with round slots for coins attached to the slot with an edge;
  • There are glass cases where metal money is well accessible for viewing, thanks to the transparency of the storage space;

It is very important that the coins come into contact with human hands as little as possible, therefore it is recommended to take them by the edge. If, nevertheless, you had to take it outside the field, you should rinse the product in warm water and soap and, after thoroughly drying it, place it in the designated place.

With proper care and respect, rare, old coins will delight the numismatist for a long time with their unique design and inimitable grace. Perhaps valuable collections will become a family heirloom and bring good profits in the future.

zolotoexpert.ru

Cleaning and restoration of Soviet coins, despite all the seeming simplicity, the procedure is quite painstaking and complicated. And first of all, this is due to the fact that coins of the periods of the USSR had several different issues that differed various materials manufacturing. Accordingly, different cleaning methods are selected based on the material used to issue the coin. And for this you need to have at least minimal knowledge about the issues of coins themselves.

At the same time, if we take into account that most of the coins of the period of the Soviet Union still have a low market value, then the question of the relevance of the cleaning process involuntarily arises. Is it worth the candle?

Description of coin issues in the period 1924-1993

So, in the tables below, you can see the USSR coins of various issues with a small description, photographs and an indication of the material from which they are made.

The first coins of the USSR period were issued in 1924 after the monetary reform of 1922-1924. These were copper coins with denominations of 1, 2, 3 and 5 kopecks, coins of 500 silver with denominations of 10, 15 and 20 kopecks and coins of 900 silver with denominations of 1 fifty kopecks and 1 ruble. Subsequently, a half-kopeck copper coin was added to this series of coins.

Sample coins 1924-1925
The photo Denomination Weight, g. Diameter, mm Years of release Material
half a penny 1,64 16,00 1925, 1927, 1928 copper
1 kopeck 3,27 23,10 1924, 1925
2 kopecks 6,55 24,00 1924, 1925
3 kopecks 9,80 27,70 1924
5 kopecks 16,38 32,00 1924
10 kopecks 1,80 17,27 1924-1925, 1927-1931 silver 500
15 kopecks 2,70 19,56 1924-1925, 1927-1931
20 kopecks 3,60 21,84 1924-1925, 1927-1931
1 fifty dollars 10,00 26,67 1924-1927 silver 900
1 ruble 20,00 33,50 1924

The coins of the next issue were the result of a decree of the Central Executive Committee and the Council of People's Commissars of January 6, 1926. The decision to mint new coins, first of all, was caused by the large size and weight of the first issue of money. Accordingly, in 1926, new aluminum bronze coins were issued in denominations of 1, 2, 3 and 5 kopecks.

The coins issued in 1935 remained unchanged in terms of materials and sizes. The image on the obverse of bronze coins with denominations of 1, 2, 3 and 5 kopecks was somewhat simplified, and the reverse was changed on nickel coins with denominations of 10, 15 and 20 kopecks.

The next issue of coins of the USSR in 1961 brought more significant changes. The coins of this particular issue had the longest circulation period. Coins with denominations of 1, 2, 3 and 5 kopecks remained unchanged in size and weight, while a different material was chosen for their production - an alloy of copper and zinc. The production of nickel coins in denominations of 10,15 and 20 kopecks was suspended, and the production of copper-nickel coins of the same dimensions and weight was launched. In addition, two new copper-nickel coins with a denomination of 50 kopecks and 1 ruble were put into circulation.

Sample coins of 1961
The photo Denomination Weight, g. Diameter, mm Years of release Material
1 kopeck 1,00 15,00 1961-1991 copper-zinc alloy
2 kopecks 2,00 18,00 1961-1991
3 kopecks 3,00 22,00 1961-1962, 1965-1991
5 kopecks 5,00 25,00 1961-1962, 1965-1991
10 kopecks 1,80 17,27 1961-1962, 1965-1991 copper-nickel alloy
15 kopecks 2,50 19,56 1961-1962, 1965-1991
20 kopecks 3,40 21,80 1961-1962, 1965-1991
50 kopecks 4,40 24,00 1961, 1964-1991
1 ruble 7,50 27,00 1961, 1964-1991

The final issue of Soviet exchange banknotes took place in 1991. It was represented by the following coins: 10 and 50 kopecks, 1, 5 and 10 rubles.

Now that we have figured out the materials from which the coins of the former Soviet Union were made, we can proceed to the methods of cleaning them. Separately, I would like to say that, despite all the variety of methods for cleaning a particular coin at home, only one can be suitable! or several at once! Only experience or advice from a more "senior" comrade will help you to understand all this. If you doubt your knowledge and powers, then it is better not to take it at all, otherwise you may get the opposite effect as a result of cleaning.

How to clean copper coins

So, having in your hands a handful of copper exchange signs from the times of the former Soviet Union, you can proceed with the restoration procedure. Copper coins from 1924-1925 can be cleaned in several ways:

The easiest and, perhaps, the safest way to clean copper change banknotes (and, by the way, other copper artifacts) is to use ordinary soap. The principle of the method is quite simple - the soap solution is essentially a slightly alkaline medium, which gradually corrodes the oxides on the coin and allows them to be removed without hindrance with a brush. Hence the main drawback of this method, the action of the solution is very weak and sometimes quite serious time is required (sometimes months) in order to cleanse the coin to the desired quality.

To prepare the solution, you need to take some kind of bowl and grate the soap on a coarse grater. It should be remembered that the highest alkali content is present in laundry soap, the lowest in baby soap. The grated soap should be poured with boiling water until a liquid mass is obtained with a consistency similar to thick sour cream. It is necessary to immerse coins in this mass, preferably so that they do not cake on top of each other and are covered with soap on all sides. Our coins remain in this solution for several days, they must be periodically stirred and turned over.

After a certain period of time, it is necessary to take out the coins and try to remove the oxides under a stream of warm water with a cut-off bristle toothbrush. If cleaning did not bring the long-awaited result, then the procedure must be repeated. Those. coins are sent back to soap, then taken out again and washed again. And so on until you achieve the desired effect. After that, the coin should be cleaned with a toothbrush and baking soda so that no white soap residue remains on its surface. Actually, the whole method.

Lemon acid. In this case, the coin is immersed in a citric acid solution, but you should think 100 times before using this method, since lemon is a potent reagent. It's great for cleaning silverware, but copper can break down in minutes.

Another potent drug in which, if desired, you can try to cleanse a highly oxidized coin is ammonia. I repeat once again, with its help you need to clean only those coins whose oxides do not lend themselves to other more gentle means. Cleaning the coins with ammonia occurs as usual: dip your "kakalik" into a solution of ammonia, which you can buy at any pharmacy and wait. The reaction will be intense. Therefore, take out the coin more often and rinse it with a toothbrush under warm water.

The procedure for cleaning coins by electrolysis is possible only if the latter does not have pronounced damage on its surface and the oxides of various salts have not corroded deep cavities in your coin. This requirement dictated by the fact that during electrolysis processing, all the flaws and shortcomings will be very clearly expressed.

Electrolysis cleaning is performed as follows: the coin is attached to the cathode of a direct current source ("-"), and any copper object to the anode ("+"). A simple power supply unit can serve as a power source, for example, from charging to a cell phone. Then both electrodes are immersed in the electrolyte and voltage is applied. As an electrolyte, you can use a solution of ordinary baking soda in water in proportions of 2 tbsp. spoons per liter. Cleaning can take anywhere from a few minutes to an hour, depending on coin size, oxidation state and power source.

Cooking coins in a soda solution. Quite not complicated, quite fast, but at the same time very effective cleaning technique. Actually, the process technology itself is already briefly contained in the title. Copper coins are boiled in a solution of soda in water. To prepare the solution, you need to take 3 ... 5 tbsp. spoons of soda for 0.5 liters. water. The soda solution should cover our exhibits by about 2 cm so that during cooking they do not end up on top of the solution. The cooking process takes about 30 minutes. Then we take out each coin separately and rub it with a gruel from the same soda with a toothbrush under a stream of warm water. This method is also good for those for use at home, which is in almost every home and no additional costs are required for its purchase.

Cleaning with vinegar. Vinegar, like any other acid, can be used for cleaning. But this should be done with extreme caution and in exceptional cases. Because any acid destroys the patina on the coin, damages the relief, opens cavities. Cleaning should be carried out with a vinegar solution with a strength of 7 ... 20% from any grocery store.

Disodium salt of ethylenediaminetetraacetic acid or, more simply, Trilon B (complexone-III, chelaton III). An excellent cleaning agent designed to make salts of various metals from insoluble metals soluble. Thus, under the influence of Trilon B solution, many oxides and, unfortunately, patina are easily washed off on coins. It is advisable to use this drug if the coin is evenly coated with oxides.

Mechanical cleaning. Quite a complex and painstaking process, which cannot be explained in a nutshell, therefore a separate article will be devoted to this cleaning method.

How to clean aluminum bronze coins

In most cases, aluminum bronze coins are cleaned in the same way as copper coins, with a few specific exceptions. The most acceptable ways:

Electrolysis. When using this method, do not forget about safety precautions, do not allow direct contacts of the anode and cathode, otherwise a short circuit will occur.

Ammonia. Ammonia is more gentle with a coin made of aluminum bronze than with copper products, so this method is more applicable in this case.

Trilon B. A solution of Trilon B in most cases easily removes all oxides, and does not interact at all with the metal of the item being cleaned. Even after a long enough stay in solution, the coin does not collapse and does not change its color. The strongest oxides require a fairly long interaction with Trilon B, up to several days, but the process can be accelerated by heating the solution.

Paste GOI. It is a method of abrasive cleaning, which is highly undesirable for coins in general, and generally contraindicated for rare coins.

Cleaning silver coins

Silver, unlike copper and bronze, is not such an active chemical element, therefore, they can be used more actively to clean the silver coins of the former Soviet Union.

If you use citric acid for cleaning, then to prepare the solution, you need to put 2 teaspoons of concentrated lemon in a glass of warm water. At the same time, a volume of 10 ... 20 ml is sufficient for cleaning one coin. solution. The coin is immersed in this solution for about 10 minutes. Then the softened oxides are removed and removed with a toothbrush.

We do the same with ammonia. It takes about 5-10 ml to process one coin. 10% ammonia solution. In both cases, the coin must be turned over during the soaking process so that the procedure goes evenly on both sides.

Cleaning Nickel and Copper-Nickel Coins

In the field of cleaning these coins, nothing new has been invented either. All the same methods are used as for cleaning previous types of coins. With only one amendment, that when cleaning copper-nickel coins with vinegar, an unpleasant reddish or pink tint may appear.

narkop.ru

How can you clean your coins at home?

Almost any metal oxidizes over time, especially collectible coins. The older the coin, the more expensive it is, but the stronger the oxides on it. Therefore, it is important to know how to gently clean your coins at home so that damage to even the oldest coins can be minimized.

For cleaning coins, specialized solutions have been created that perfectly remove almost any dirt and uneven patina, as well as oxides. But these liquids are quite expensive, which is why alternative home cleaning methods are popular.

For example, if you need to clean the coins of the USSR, and you do not want to spend money on expensive mixtures, then you can try using:

  • citric acid;
  • soap;
  • Coca-Cola;
  • electrolysis.

If you were looking for ways to clean gold and silver coins, then we have prepared for you detailed instructions... These methods do not require any special skills or knowledge from you, so their use is available at home, as well as making albums for coins (instructions here).

Cleaning coins at home with citric acid

To do this, you need a small ceramic or plastic container, citric acid and water. The acid is poured into a container and diluted with water, after which a coin must be put into this solution.

The cleaning process must be observed, periodically turning the specimen, since the solution is quite aggressive to dirt and is able to clean the coin down to metal.

In order to protect it from oxidation after cleaning, you need to create an artificial patina.

Cleaning coins with soap

This method can be called the most gentle, since ordinary neutral baby soap is used for such cleaning. It must be grated on a coarse grater and diluted with a small amount of water to obtain a homogeneous plastic mass.

Insert your copy into the resulting soap mass and leave for a while. From time to time they need to be pulled out, viewed and washed off the accumulated layer of dirt and oxides.

The main disadvantage of this method is its duration, because complete cleaning can be expected only after a few weeks.

Cleaning with Coca-Cola

Many people know that this drink has some cleansing effect and is useful for glossing chrome surfaces. However, Coca-Cola can also help with things like cleaning coins at home.

To do this, you need to put a coin in a glass container and fill it with a drink, then leave it alone for about a week. If desired, the cleaning time can be shortened by placing the container with a coin on a battery or other heat source, since an increase in temperature will speed up the reaction.

It should be clarified that this remedy will only help get rid of the patina due to the presence of a small amount of phosphoric acid in the drink. With serious pollution, you will have to deal with more radical methods.

Purification by electrolysis

Many people remember what electrolysis is since school days. He can become a useful assistant in the case of cleaning coins, the main thing is not to forget 2 important rules:

  1. Observe safety precautions when working with electricity.
  2. Practice this method first on common varieties, so as not to spoil valuable specimens due to some minor error.

In order to clean a coin using electrolysis, you need to take a small 6-12 Volt power supply unit (for example, a universal charger or an old charger from mobile phone) with two crocodile clips attached to it, any small metal object (preferably not made of brass or copper), glass or ceramic deep dishes and saline solution (1 tablespoon of ordinary table salt per 1 liter of water).

The process itself is simple: one clip ("minus") is attached to the specimen, and the "plus" clip is attached to a metal object. After that, the coin and the metal object are lowered into the previously prepared dish with saline solution, and the power supply is plugged into an outlet.

The result can be seen almost immediately, as the solution will quickly become cloudy due to the dissolution of oxides and dirt. After such a short "bathing" your specimen should be rinsed with hot water and dried.

As you can see, cleaning coins by electrolysis is really not that difficult, although it requires care and adherence to safety precautions during operation.

In fact, there are many more ways to clean coins from pollution at home, but the ones described above are the most affordable and effective of them. In the video below, you can see cleaning in other ways.

lifecoins.ru

How and what to clean coins to shine

If you decide to ennoble old coins, the main thing is not to cause irreparable harm to values. Before you properly clean the coins from dirt, you need to decide what metal they are made of.

Money can be gold, silver, bronze, copper, aluminum. There are also nickel, bimetallic, brass specimens. Cleaning coins at home is possible subject to certain rules and an individual approach to each copy.

Gold coins hardly need cleaning. Numismatists treat such money extremely carefully, and I do not recommend using anything other than a soft cloth for cleaning. The brush and the more so the scrapers will scratch the precious surface. Here are some ways to get your gold coins in order.

You can bring gold money to a decent state with ammonia. Prepare a glass of soapy water, add 8-10 drops of ammonia to it. Put the metal money in the liquid and wait 10-20 minutes. Rinse in warm water. Then wipe with a dry and clean cloth, preferably flannel.

Put a teaspoon of sugar in a glass of warm water. Soak the specimens in the liquid for three hours. Rinse under running water and dry with flannel.

  • Dishwashing liquid

If the gold coins are free of critical contamination, you can use warm dishwashing liquid baths. Dip them in the solution and wash them with your hands. Then rinse under running water and dry with a soft cloth.

Dissolve two tablespoons of table salt in half a glass of water. Mix the product well and dip the coins into it. After 8 to 10 hours, rinse in water and wipe with a soft cloth.

  • Always wipe the gold dry to prevent streaks and dark spots from moisture.
  • Do not use products containing abrasive substances.
  • Do not scrub gold coins using brushes, scrapers, or hard sponges. Mechanical cleaning, where cutters, scrapers, needles are used, are not suitable for gold products.
Read More: How To Clean Copper Coins At Home

Cleaning up silver money

  • Dissolve 30 grams of baking soda in 100 ml of water and put the silver money in there for several hours. Make a baking soda gruel. Use a cloth to clean particularly dirty areas. Then rinse with water and wipe dry with flannel. The tool will make the money shine and remove all oxides from it.
  • You can achieve shine by cleaning the coins with citric acid. This option is more suitable for Soviet money. Dissolve half a teaspoon of lemon in a glass of water. Dip the exhibit into the resulting solution. Wipe dirty areas with a cotton swab, constantly turning the coins over. The harder plaque will help remove a toothpick. You do not need to soak money in water with citric acid. Finally, rinse the coins in warm water. Cleaning silver coins with citric acid is the best option.
  • To make silver money shiny and presentable, you can clean it with acetic acid and soda. Make a weak vinegar solution and soak coins in it for half an hour. Dilute the baking soda to make a gruel and rub the baking soda over the surface with your fingers. Clean the money on both sides, rinse with water, wipe dry.
  • You can remove traces of oxidation from silver coins with ammonia. Put money in it for a maximum of one minute. Then take it out and clean off the plaque with a cloth. Rinse money in clean water.
  • Cleansing with ammonia will remove oxidation traces and green deposits. Buy a solution from a pharmacy and pour it into a container so that the entire bottom is covered with ammonia. Place a cotton pad on the bottom and a coin on it. Cover the top with another disc. The cotton wool should be saturated with ammonia. It is better to close the container. Get the money in 3-5 minutes. Then you need to clean it with a soapy toothbrush and rinse it in water.

  • If the silver coin is rare and old, do not use acids and abrasives.
  • Mechanical cleaning (brushes, scrapers, cutters) is not recommended for silver specimens.

We clean copper money

Take a plastic container and rub baby soap into it. Dissolve the soap shavings with boiling water and stir. Dip coins into the resulting product, and close the container with a lid. From time to time you will have to get money and clean it from plaque under running water. You can use a soft brush, but be careful not to remove the patina from the copper exhibits. Cleaning will take a week. It is necessary to achieve the complete disappearance of oxides and impurities.

The option of purifying money from copper by electrolysis is rather dangerous. You need to take a glass of cold water, a stainless steel spoon, a pinch of salt, an AC / DC adapter for 18, 12 or 9 volts and two crocodile clips. Clips must be connected to the bare wires of the adapter. Dissolve a pinch of salt in a glass of water. Connect the clamp with the negative wire to the money. A clamp with a positive wire must be connected to the spoon. Dip the spoon and coin into the glass of the solution so that they do not touch each other. Connect the adapter to a power source. After a few minutes, turn off the device and remove the coins. It is required to wipe each money with soda and rinse with water. Electrolysis cleaning quickly dissolves dirt and oxides.

For copper specimens, cleaning is possible using scrapers, needles, brushes and cutters. The mechanical procedure for cleaning copper exhibits must be carried out very carefully. In this matter, it is better to trust the professionals. Mechanical processing of coins takes place under a microscope.

It is not advisable to clean copper specimens with citric acid. A copper-destroying reagent will damage the coin and reduce its value.

Purification of bronze or brass coins

The money of the USSR was produced from brass, and they were called bronze. It is quite difficult to clean these coins.

  • Electrolysis. The purification of bronze (brass) money can be carried out by electrolysis. To avoid a short circuit, make sure that the coin and electrode are securely attached and do not touch each other.
  • Ammonia. To get rid of green spots of corrosion on brass (bronze) money, immerse them in ammonia for one minute. After removing the money, it is necessary to urgently rinse it with cold water so that unnecessary stains do not appear on the bronze coins.
  • Lemon acid. You can clean brass money with citric acid, just like silver coins (see above).

Purification of aluminum bronze

Coins of the USSR made of aluminum bronze are cleaned to a shine with a shoe brush, the fibers of which are made of brass. To begin with, the money of the USSR needs to be soaked in soapy water for several hours. Then you need to clean the aluminum bronze exhibits on both sides with a special brush and rinse under running water.

  • Ultrasonic cleaner for cleaning coins

Use an ultrasonic bath to clean up USSR aluminum bronze money. Pour hot water into it, put a tablespoon of citric acid. Turn on the bath in 50w mode for five minutes. After the procedure, the specimens will turn red. To get rid of plaque, you can clean your aluminum bronze money with baking soda or dish cleaner. Then rinse and wipe.

How to clean 10 ruble commemorative coins

  • Bee metal coins 10 rubles will look like new if you brush them with a whitening toothpaste and a toothbrush. Then you need to rinse the specimens thoroughly.
  • Yellow plaque from anniversary copies of 10 rubles can be removed with vinegar. You will need a glass of 9% acetic acid solution, into which you need to drop 10 rubles. After an hour, remove the specimens and rinse with hot water. If the dirt is not completely removed, brush 10 rubles with toothpaste.

Avoid cleaning commemorative pieces using sandpaper, stiff bristles, or scrapers. There is a risk of permanently ruining the money.

Nickel Coin Cleaning

  • Hydrochloric acid and alcohol. To clean nickel coins, prepare a 50: 1 solution of alcohol and hydrochloric acid. Soak the coin several times in liquid, then scrub with a soft brush, rinse with water and rub with alcohol. Without rinsing, wipe dry.
  • Distilled water and vinegar. Nickel coins will take less time to tidy up if you rinse them in soap and water first. Put the washed money in a solution of distilled water and vinegar (30% vinegar and 70% water). Hold the specimens in this liquid for three days. Flip the coins periodically. After three days, it is required to clean the nickel coins from the copper tint. Take distilled water 70% and ammonia 30%. Dip the specimens into the prepared solution for another three days. Don't forget to turn over. Finally, rinse the damp coins with baking soda, scrubbing with your hands. Rinse with water and pat dry.

Cleaning your coins at home can be effective and can help you tidy up your precious coins. To achieve a positive result, you need to take into account the characteristics of the metal from which the money is made, and be willing to make some effort.

For a novice numismatist and an experienced collector, coins are of great value, the value of which is influenced by the year of manufacture and how clearly the signs and inscriptions are visible. But the older the product, the more oxides appear and the thicker the layer of dirt accumulated on it.

Choosing a way to clean coins with high quality at home and how, today everyone can purchase a special tool in the store. However, the price of this product is high, and experienced numismatists know about the availability of effective and simple methods for restoring the presentation of the product.

How to Clean Coins: Versatile Ways

Before proceeding with the elimination of contaminants, the product is washed in a soapy solution, the level of damage is assessed and the way in which the coin can be cleaned is selected.

In addition, it is necessary to establish which metal is included in the composition in order to avoid damage.

Alternative methods that require the use of Coca-Cola, olive or petroleum jelly, GOI paste, citric acid or vinegar, soda, soap and electrolysis help clean coins from rust and oxidation at home.

Proven and popular ways to remove contamination from modern bimetal products and collectible coins made from other materials are presented below.

Neutral soap

A piece of baby or laundry soap is rubbed on a grater to obtain gruel, then both sides of the product are liberally lubricated with a mass. From time to time, the metal is taken out and cleaned of dirt under running water with a brush. The use of soap solution for cleaning coins is an effective and most gentle method in relation to metal, but sometimes the necessary result appears after a week or a month.

Blend of baking soda and soap

If there is no time to wait, then dissolved soda is used with soap. The metal is cleaned and then smeared with alcohol and petroleum jelly to prevent plaque reoccurrence.

Vaseline oil

In this product, the product is boiled until it is completely cleaned of oxide and plaque, and then washed in ethyl alcohol. The method is not suitable for cleaning rare exchange signs.

Table vinegar or citric acid

9% vinegar will remove rust and green deposits. For this, the coin is placed in a ceramic dish, poured with a solution of vinegar (1 tbsp. L) with water (half a glass) and periodically turned over. After complete cleaning, the metal is washed under running water and dried using a multilayer napkin. Citric acid can be used in place of vinegar.

"Coca Cola"

The drink contains phosphoric acid, which removes impurities from the metal. To speed up the cleaning process, the dishes with the liquid are placed in a warm place (on a radiator or in the sun).

Electrolysis

This method requires preliminary testing on a less valuable specimen, as well as adherence to safety rules. To clean the product you will need:

  1. The power supply is a universal charger or a device from a mobile phone.
  2. Clips in the form of "crocodile" (2 pcs.).
  3. A metal object made of copper or brass.
  4. Ceramic or glassware.
  5. A solution of soda and water (1 tablespoon per 1 liter).

A clip with a "-" sign is attached to a coin, and a clip with a "+" sign is attached to a metal object. After that, the product and the object are placed in a bowl with a solution, and the power supply is plugged into an outlet. The result appears in a short time.


How to clean a copper coin

When a question arises, how to clean a copper coin, you can use some of the universal methods, which are indicated above. So, if stains appear on a collector's item, then boiling petroleum jelly will help to eliminate them.

Coca-Cola is safe for the product, cleans coins to a shine. Paste, soda, sand and tooth powder (not dissolved in water) are dangerous because they can scratch the surface and cause irreparable damage to the product.

At home, cleaning copper coins from green plaque is carried out using citric acid or vinegar. In the fight against the pale yellow formation of lead carbonate, a 10% solution of acetic acid is useful.

If the collection item is covered with a dark cherry color, then it is placed in a 15% ammonia solution or 10% ammonium carbonate solution. The latter is less aggressive and safe for copper.
Kefir is a gentle means for removing oxide from royal coins. Rare specimens are placed in a dairy product until the plaque disappears completely, periodically rinsing under running water.

Sometimes copper starts to deteriorate from damage or rust. To clean the metal quickly and efficiently, coin collectors recommend using Trilon B, a slow-acting reagent. The product is also placed in a container with liquid and peeling plaque is carefully washed off.

https://www.youtube.com/watch?v=QvsQgN2aqwA Video can’t be loaded: how to clean old copper coins from oxide and dirt in 2 minutes (https://www.youtube.com/watch?v=QvsQgN2aqwA)

Sometimes the copper product becomes unnaturally light after cleaning. Then experienced collectors are advised to put it in a sunny place and leave it for a week, periodically turning it over.

If there are signs of "bronze disease", then it is better to turn to a professional restorer who will help clean the copper coin from the green plaque of a light shade.

Cleaning silver coins

In this case, coins are cleaned using the same universal methods using citric acid, ammonia, soap solution, soda or oil. At the same time, ammonia, like ethyl alcohol, cleans the product from green spots, dirt and oxide, and olive oil adds shine to the metal.

You can also clean silver coins to a shine with salt. To do this, the component is mixed with water (1: 2) and spread on foil. Together with the resulting gruel, the metal is wrapped and left for 8 hours.

If the coins have darkened, then you can cleanse the black plaque from the silver with the help of lemon juice. To do this, dip a cotton swab into the juice and wipe the product. Soaking silver in such a product is not recommended due to possible staining.

Some collectors clean silver by soaking in water left over from boiling chicken eggs.

Household detergents are used to clean silver items without heavy contamination. In this case, the coin is placed in a liquid diluted with water, after 30 minutes, rinsed and dried with a napkin.


Since it is not easy to clean a silver coin, numismatists recommend using a soft-bristled toothbrush, and polishing with suede after the dirt has disappeared.

The better to clean coins from the times of the USSR

In the period from 1931-1935 on the territory of the Soviet Union, coins were made from a wear-resistant alloy of copper and nickel, which undergoes the formation of a red-brown oxide. In addition, zinc, bronze, brass and aluminum were used as part of the exchange signs, which add complexity to the removal of dirt from collectible items.

However, experienced numismatists start cleaning coins from the times of the USSR at home. For this, Trilon B and electrolysis, which were mentioned above, are used. And one more non-standard cleaning method: the coin is moistened with water, covered with cigarette ash and left in this state for 20 minutes. After the time has elapsed, the gruel is rubbed into the product and washed off under running water.

For the purification of bronze or brass coins, from a copper-nickel alloy of cupronickel products, the same universal methods are used. But you should pay attention to some of the nuances:

  1. Soapy water will remove dirt but not remove oxides.
  2. Vinegar can negatively affect image clarity and make the coin less valuable.
  3. Hydrochloric acid spoils the silver-white product.
  4. For polishing and cleaning Soviet coins, you cannot use GOI paste, which can erase relief images and patina.


Safely clean old and collectible coins at home

Before you start cleaning gold or ancient antique coins that have been found in the ground, the product is washed under running water and brushed with a soft bristled brush.

If the coin has oxidized, then the above-mentioned universal methods are used. Since it is difficult to clean an old coin, you should first experiment with a less expensive one.

In addition, it is important to follow the rules for storing valuable copies:

  1. Coins should be kept in a clean, dry and dark place.
  2. After the product has been taken in hand, it is thoroughly washed and dried.
  3. You need to store coins in special albums with pockets, cardboard tablets or glass cases.
  4. Old coins should be cleaned carefully, without the use of reagents and abrasive substances.

Respect for collection samples, adherence to the rules of care and storage will minimize the need for cleaning.

Alexander Igorevich

Reading time: ~ 7 minutes

Almost any metal oxidizes over time, especially collectible coins. The older the coin, the more expensive it is, but the stronger the oxides on it. Therefore, it is important to know how to gently clean your coins at home so that damage to even the oldest coins can be minimized.

For cleaning coins, specialized solutions have been created that perfectly remove almost any dirt and uneven patina, as well as oxides. But these liquids are quite expensive, which is why alternative home cleaning methods are popular.

For example, if you need to clean the coins of the USSR, and you do not want to spend money on expensive mixtures, then you can try using:

Cleaning coins at home with citric acid

To do this, you need a small ceramic or plastic container, citric acid and water. The acid is poured into a container and diluted with water, after which a coin must be put into this solution.

The cleaning process must be monitored by periodically turning the instance over., since the solution is quite aggressive to dirt and is able to clean the coin down to metal.

In order to protect it from oxidation after cleaning, you need to create an artificial patina.

Cleaning coins with soap

This method can be called the most gentle, since ordinary neutral baby soap is used for such cleaning. It must be grated on a coarse grater and diluted with a small amount of water to obtain a homogeneous plastic mass.

Insert your copy into the resulting soap mass and leave for a while. From time to time they need to be pulled out, viewed and washed off the accumulated layer of dirt and oxides.

Basic the disadvantage of this method is its duration, after all, you can wait for a complete cleaning only after a few weeks.

Cleaning coins at home is a simple set of work, the need for which is due to the oxidation of almost any metal within a certain period of time.

Those who know the specifics of various metals, in particular, copper, gold, silver, etc., are aware of the fact that the older the coin, the more strongly the oxides appear on it.

When cleaning coins made of copper and other materials on your own, without contacting specialists, you need to follow simple rules to avoid damaging even the oldest coins.

Do we spend money on purchases or do we manage with handy means?

Specialized solutions designed for cleaning procedures were developed taking into account the specifics of each specific metal: copper, silver, etc. Each of the funds presented on the shelves of hardware stores allows you to remove various dirt and uneven patina, oxides from the surface of coins.

However, striving to restore copper and other metals in their pristine radiance and purity, not everyone can afford to purchase these rather expensive solutions.

Therefore, most ordinary consumers decide to tidy up the copper surface of coins with the help of more affordable and less expensive means.

Home-friendly alternative cleaning methods can clean virtually any soiled copper coin.

The list of necessary funds available in most households is as follows:

  • "Coca Cola";
  • lemon acid;
  • soap;
  • electrolysis.

With the help of each of them, many ordinary consumers were able to clean the copper surfaces of coins and other products made of this and other metals without undue hassle.

The algorithm for cleaning copper and silver coins is characterized by the same simplicity and affordability as similar copper products. Numerous Internet resources contain all the information you need.

The following overview is devoted to the task of cleaning copper coins in various ways.

The preparatory stage is a search and selection of a container, a possible material for the manufacture of which:

To clean copper coins, in addition to citric acid, you also need to prepare water. The acid is poured into a bowl and diluted with water. Coins are dipped into the solution.

It is necessary to take into account the rather strong aggressiveness of the solution - the cleaning process must be carried out under continuous control.

The product needs to be turned over from time to time. Carelessness and neglect of this requirement can lead to the solution being able to clean the coin down to the metal.

After it has been possible to clean the entire surface of the product, remove the dirt completely, it is advisable to create an artificial patina.

Option number 1

This cleaning technique is considered to be as gentle and safe for the subject as possible. As a rule, in this case, not household soap, but neutral baby soap is used.

Having decided how to clean the coins, you must first grate the soap on a coarse or medium grater. Then the grated soap is diluted with a small amount of water - until a homogeneous plastic-type mass is obtained.

To clean the coins, they are inserted into the resulting soap mass. Having left the products in this state for a while, nevertheless, it is nevertheless necessary to periodically pull them out of the water and check them, washing away the layers of dirt and oxides.

Having decided to clear coins by this method, it is necessary to understand the specifics of the approach, such as its impressive duration. The fact is that in extreme cases, absolute cleaning can be achieved only after a few weeks.

Option number 2 (additional)

You can also achieve the desired goal by resorting to laundry soap. The process is somewhat different from the one described above, but it is just as simple.

In this case, a plastic container is used as a container. It is filled with steep boiling water, into which soap chips are poured.

After waiting for the soap to completely dissolve and a jelly-like substance is obtained, the owner can drop copper coins into it, leaving it for a day or even two. The duration of stay in the solution depends on the degree of contamination of the products.

After the required period of time has elapsed, the money must be rinsed using a soft brush and dried properly.

Multiple repetitions of the procedure are allowed. By removing all the oxides layer by layer, you can get coins with an absolutely clean and without any damage to the surface.

Fizzy Coca-Cola: spend money to clean

The ambiguous properties of the drink, beloved by children and adults, have found their application in the struggle for the purity and shine of tinkling coins.

Many already know that it can be used to perfectly clean and gloss the chrome-plated surfaces of various products. Cleaning is no less successful. old coins at home.

So, in order to clean a soiled and tarnished coin, it must be lowered into a container, preferably a glass one, and filled with an effervescent drink. The dishes and their contents are left in this state for several days, preferably for a week.

With a lack of patience, the time required to clean coins can be significantly shortened. For this, the dishes are placed on a battery or other safe and effective heat source. The essence of the approach is that an increase in temperature accelerates the reaction.

It is possible to tidy up the old coin in the presented way due to the content of a small amount of phosphoric acid in the sweet drink. If the pollution is much more serious, you will have to turn to more radical methods.

Those who have given due attention to the lesson of physics are familiar with this concept from the school bench. Its usefulness in the processing of coins will be ensured if the following two important rules are observed:

  • compliance with safety regulations;
  • testing the method on inexpensive copies, in order to avoid damage to more valuable products.

It is worth paying special attention to the second point of the principles of work: the fact is that sometimes, due to a minor mistake, serious, irreparable damage to a coin or other valuable product is caused.

Old coins are restored in terms of cleanliness and luster by using a small power supply unit (6-12 volts). As such, a universal charger can be used. Another alternative: an old mobile phone charger.

Attached to the power supply or its alternative are:

A saline solution is also used, prepared in the following proportions: 1 tablespoon of salt per 1 liter of water.

The process is simple, you just need to accurately follow all the steps. One clip - with a minus sign - is attached to the specimen, while the opposite one, with a plus sign, is attached to a metal object.

Then the coin and the metal product are lowered into a previously prepared container, where the saline solution is located, while the power supply is plugged into the outlet.

The result makes itself felt quickly enough: the process of dissolution of oxides and dirt leads to a rapid clouding of the solution. The bathing period is short, after which the specimen is rinsed with hot water and dried.

A little care and clarity in performing all the steps will allow you to achieve the desired results.

Mix of soda and soap

If you want to achieve the desired cleanliness in the shortest possible time, then the soap method can be enhanced by using soda. However, you need to add soda already dissolved.

After completing the cleaning, the coins must be thoroughly rinsed, after which they must be greased with alcohol and vaseline ointment. The last step provides maximum protection against new contamination and oxidation.

Oil method

In this case, you need to boil the coins in an oil product. The best option is to use petroleum jelly. The boiling process must be brought to an absolute purification of the coins. The last step: rinsing in ethyl alcohol.

Extreme cases

If the coin is brought to an extreme condition: it is unusually heavily soiled, you can resort to caustic soda. The product must be handled very carefully, it must be diluted in cold water.

Since this agent is inherently a strong alkali, it is recommended to avoid contact with it. You need to lower the product into this solution using tweezers. Dwell time in solution: no more than ten minutes, after which the coins are taken out and washed.

However, not all coins can transfer this method. If a spot of green or green is seen on their surface blue, the cleaning process must be interrupted. In case of a negative reaction, you should not use this method on already tested products.

Having studied all kinds of methods for cleaning coins and choosing the optimal one, you need to observe the accuracy of each step.

You also need to take care of your own safety - especially when using some methods.

Clean, shiny and sparkling coins delight with their appearance both connoisseurs and connoisseurs of these products, and ordinary users who, for one reason or another, are interested in cleaning reused coins made of copper and other metals.