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<p>[QUOTE=&quot;medoraman, post: 1803663, member: 26302&quot;]The main thing to remember about cleaning coins is progression. Do not nuke a coin with acids, etc if you haven&#039;t tried gentler methods. I always start with water, pure water. A good source is from dehumidifiers or AC units. Also known as demineralized water. This will suck dirt out of a coin because the water wants to bond with minerals. If someone wants to use soap make sure you either get one without chlorides or rinse well after the scrub.</p><p><br /></p><p>This cleans up most dug coins, and is the start of cleaning ancients. After this, various grades of chemicals or mechanical cleaning can be used, such as acetone to start, then olive oil and verdicare, then up to more dangerous chemicals. Point being, ALWAYS start with just water and see how it goes. You can never &quot;unclean&quot; a coin once you have ruined it. Like most things, it takes trial and error.[/QUOTE]</p><p><br /></p>

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