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<p>[QUOTE=&quot;adric22, post: 1812176, member: 38146&quot;]I tried a little experiment last night, but it didn&#039;t work out so well.&nbsp; I decided to clean some old black looking pennies.&nbsp; Don&#039;t worry, these are worthless pennies (well, they are worth 1 cent) but I just wanted to experiment as I&#039;ve had good success cleaning black silver coins in the past.&nbsp; I used my usual method which is to soak in vinegar+salt for a while, then scrub with baking soda.&nbsp; Well, the result was odd.&nbsp; the penny was indeed clean. It looked like it just came out of the mint. However, the color was off.&nbsp; It didn&#039;t look copper anymore.&nbsp; It was very light colored.&nbsp; Sorry I didn&#039;t take a photo.&nbsp; But I would have expected it to look like new copper.&nbsp; For example, if I take an old silver coin and clean it, the resulting coin has the same color as a brand new silver coin.&nbsp; But a brand new penny has a much darker copper color than this penny had.&nbsp; </p><p><br /></p><p>Is there a better way to clean a penny to make it look new again, without altering the color?[/QUOTE]</p><p><br /></p>

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