How to Remove Tarnish from Silver Coins

Tarnish appears as a black or green layer on silver coins due to oxidation that occurs when silver is exposed to airborne sulfur. The only way to prevent tarnish is by isolating the coin from exposure to air. Before removing tarnish from silver coins, keep in mind that cleaning older coins can reduce the sale value of the coin. Tarnish is removed by using a mild acid and a cloth.

Things You'll Need

• Small container
• Lemon juice or white vinegar
• Soft bristled brush
• Soft cotton cloth

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Instructions

1. • 1

     Fill a small container with lemon juice or white vinegar. Test a couple of pieces of regular currency first to see the results.

   • 2

     Soak the coins in the liquid until the tarnish dissipates. Remove and wipe with a soft cloth.

   • 3

     Rinse the coins with distilled water then the desired amount of tarnish has been removed. Dry the coins with a soft cotton cloth.