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Old 12-10-2009, 12:59 PM
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cobalt cobalt is offline
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Join Date: Aug 2009
Location: Ogden, Utah
Posts: 38
Thumbs up Coin cleaning

I clean clad coins and zinc-copper pennies by clamping them in a pair of needle nose pliers and quickly buff both sides with a soft brass circular brush on my bench grinder. These coins are spent for batteries or given to the Grand kids for chores any way. It takes about 3-4 seconds to clean both sides which is faster than salt and vinegar and a tumbler. The grungiest coins come out looking like a new coin and I don`t think there is much metal removed from the coins. I would NOT try this with silver or collectible coins! Don`t forget to use eye protection when operating the bench grinder.
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