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Treasure Hunting
Cleaning Your Finds
Cleaning modern coins. Decimals.
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<blockquote data-quote="Zorgs" data-source="post: 176651" data-attributes="member: 5524"><p>Been doing a bit of testing and best bang for buck and minimal effort has been Hydrochloric acid so far. I tried some silver/gold/copper coins, took about 30 seconds in solution to clean all the black/dirt away. </p><p></p><p>I'd probably dilute it for a large lot and let it sit for a couple of minutes with a bit of agitation, then rinse with water.</p><p></p><p>Note it will slightly pit some coins. This is for clean and spend only, make sure the 20 isn't a florin! I guess composition changed some years because some of the same denomination coins are bright and some are dull! </p><p></p><p>Apologies if it's been covered before.</p></blockquote><p></p>
[QUOTE="Zorgs, post: 176651, member: 5524"] Been doing a bit of testing and best bang for buck and minimal effort has been Hydrochloric acid so far. I tried some silver/gold/copper coins, took about 30 seconds in solution to clean all the black/dirt away. I'd probably dilute it for a large lot and let it sit for a couple of minutes with a bit of agitation, then rinse with water. Note it will slightly pit some coins. This is for clean and spend only, make sure the 20 isn't a florin! I guess composition changed some years because some of the same denomination coins are bright and some are dull! Apologies if it's been covered before. [/QUOTE]
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Treasure Hunting
Cleaning Your Finds
Cleaning modern coins. Decimals.
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