Sterling Silver Commemorative Medal - How Should It Be Maintained?

The silver commemorative coin is soft and will leave traces once it is hit by hard objects. Therefore, when maintaining silver commemorative coin, first of all, avoid direct collision and friction with hard objects. Do not put several coins in one pocket at the same time so that they can rub against each other. Therefore, each silver commemorative coin should be sealed with a acrylic sleeve.
Silver commemorative coin must be used to prevent hand contamination. When silver commemorative coin leave the factory, they are all equipped with a thin sealed transparent acrylic cover, which can isolate the air and prevent the silver commemorative coin from being oxidized. It is easy not to take the coins out of the transparent acrylic cover, but touch them directly with your hands. When viewing commemorative coin, if possible, you should wear thin gloves, hold the edges of the silver commemorative coin with your thumb and forefinger, and prevent sweat stains from contaminating the surface of the coins, because there is sweat and oil on your hands, Sweat contains sodium chloride, as well as a small amount of potassium chloride and urea, which can oxidize with silver.
Firstly, avoid contact with acidic and alkaline substances, which can oxidize the silver surface. Silver commemorative coin should be stored in a ventilated and dry place.
The method of cleaning silver commemorative coin first depends on the oxidation degree and quality of silver coins. If silver coins with high silver content are only slightly oxidized, it is best to use ammonia solution, sodium carbonate solution, and toothpaste to make a paste for cleaning, or mix edible white vinegar with a small amount of water, soak the silver coins in their solution for a few minutes, or gently wipe the coin surface with a cotton ball dipped in the solution. After the oxide layer on the coin surface dissolves, rinse it with water or clean it with silver washing water.
Anyway, stay away from dampness and avoid direct contact between hands and commemorative badges!