1. The coin should be protected from exposure to any kind of elements. It is also important not to scratch the coins; they should be handled with care to avoid scratches on the surface of the coins.
2. It is safe to store the coins in plastic cases or pockets that are made specifically for coin collections and sets. These cases and pockets can protect the coins from dirt and scratches.
3. Coins should be cleaned properly using vinegar, lemon juice, ammonia or rubbing alcohol.
4. If there is unwanted dirt that is hard to remove on the surface, chemical products for cleaning like Tarnex may be used. This option may be used if vinegar and lemon juice were not able to remove the dirt.
5. It is very important to remember that the value of the coin may depreciate if the coin has been cleaned. It is recommended to seek the advice of an expert on other ways of preserving a coin.
Many coin collectors believe that a person should never ever clean their collection because they believe that any product that is applied to the coin will affect the surface. A person should know how to preserve their collection and avoid dirt from touching the coins.