It seems that different coin collectors have different ideas about the best way to go about cleaning your coin collection. But many of the basic principles seem to come up time and time again. The single most important element is universal; whatever you do avoid damaging your coins. Coins have usually been handled before, the older the coin the more handling it has endured. So you already are faced with some wear and tear of the coins through time and handling, such as the basic elements of scratches, corrosion and simply by the coin being exposed to air. Whatever you do, do not make it worse once they are under your care.
Also you must decide the best time to clean a coin, if it has signs of corrosion or may have been exposed to chemicals then by all means you must clean it, but clean it very gently. Your coins do not need to be sparkling and look like new just make sure they are clean and not further exposed to harmful elements. Like the corrosion on a penny that shows up green, you will definitely want to clean that.
What you use to clean your coins with will depend on what you are trying to remove from the coin. There are many common, household substances that can do the job very well and safely.
Even your hands can have an effect on your coin so make sure when you start the job of cleaning them that you wash your hands properly before getting started and have a clean area to work in. It's very important to remember to try anything you use on a regular coin first so that you can judge the reaction.
Dishwashing liquid is a common cleaner used for cleaning dirt and grime from coins, you can soak the coins for a short time and also directly apply the liquid to the surface if they are particularly dirty. Just use a little and rub the coin gently, one at a time.
Another popular and effective cleaner is lemon juice, especially good for removing oil that usually layers on the coin from human handling. Oil can also serve as an effective defense against the air and oxidation. Soaking the coin for a short length of time usually does the trick.
Air drying is best but very soft material can be used as well. Material that is cotton or the clothes that are provided for cleaning eyeglasses are recommended. You also do not want to rub the coin too much. Remember to be very gentle!
The very best way to learn how to clean and handle your coin collection is to contact a coin dealer. Sometimes over cleaning and removing the coins natural wear and tear as well as removing tarnish can actually be detrimental to the coins value. It may look much more appealing but actually lower the value of your collection. It's best to be more safe than sorry, so when in doubt consult with a dealer.
Source: thisoldhippie.com
