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<p>[QUOTE=&quot;GDJMSP, post: 24884353, member: 112&quot;]Yeah, that poor horse has probably been beaten more times than any other horse ! And there are countless numbers of threads and posts on the subject here on this forum which you can read. </p><p><br /></p><p>As for experts v random commenters, determining which is which can be tough to do at times. I say this because while most of what the experts say is true, there can be and are exceptions to some things. Not much in this world is 100% true all of the time. And while some of what random commenters say is also true, some, and sometimes a great deal, of what they say is false. </p><p><br /></p><p>Take the 3 things you mentioned, acetone, MS-70, and e-Z-est. When used properly all 3 can safely be used on coins, but even when used properly there can be and are are exceptions for all 3 as well. The key is knowing what those exceptions are and being able to identify in advance when and when not to use them. Explaining all of this, along with everything else that can be used, and all of their exceptions, would take an entire book&#039;s worth of information.</p><p><br /></p><p>That said, and leaving out all of the exceptions for everything, in simplest terms - </p><p>proper cleaning = good. Improper cleaning = bad. </p><p><br /></p><p><br /></p><p><br /></p><p>The last part of that comment is bit worrisome to me for it seems to imply that you want to do things, clean coins, yourself. But given all your comments in the rest of this thread my advice to you would be one word - don&#039;t ! I say that because it is all too easy to turn proper cleaning into improper cleaning when one does not have the experience and or not know what one is doing. </p><p><br /></p><p>But perhaps I am misreading, misunderstanding. Perhaps you are considering sending coins to others to have them properly cleaned. If that is the case you&#039;ll probably be all right. For there are plenty of folks who do know how to properly clean a coin, they are professionals and do it for a living. One of them is a responder in this thread, and he has been doing it for a living for decades. He is also and has been a professional coin grader for decades And before you ask I am talking about Insider.</p><p><br /></p><p>And that said, there is also something else you should be aware of. And that is that even when done by the most experienced and knowledgeable professional coin cleaner there is, and even when things are done properly, cleaning a coin can turn out to be bad in the end. That is because even proper cleaning of a coin can reveal bad things, conditions, on the coin that could not be seen until after the coin was cleaned. In other words, what was cleaned off the coin was hiding these things. And revealing them can prevent a coin from being cleanly graded, and greatly reduce the previously perceived value of the coin. </p><p><br /></p><p>Of course the opposite can happen as well. In a great many cases proper cleaning results in the value of of a coin being greatly increased. Sometimes by as much as 200 or 300%.</p><p><br /></p><p>So there can be, may be, good and bad to both sides. But I&#039;ll repeat, as a general rule, and in simplest terms - </p><p>proper cleaning = good</p><p>improper cleaning = bad.</p><p><br /></p><p>And before anyone else also asks, proper cleaning is defined as a method that does no harm to the coin. Improper cleaning is defined as a method that does do harm to the coin. </p><p><br /></p><p>So now, you&#039;re pretty much where you started. And that poor horse is still being beat upon ![/QUOTE]</p><p><br /></p>

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