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<p>[QUOTE=&quot;desertgem, post: 1165109, member: 15199&quot;]<p style="text-align: left"><span style="color: #000000"></span></p> <p style="text-align: left"><span style="color: #000000">Coins, including copper , won&#039;t change unless you let them. yes they will tone in a slab if ignored, but if you store them in either commercial &quot;Intercept&quot; storage or at least store them in a food storage zip lock bag, they won&#039;t change as there is no chemically active air. If you really want to be sure, Take some new cents and dry scrub the surface until you can see fresh new copper and throw a couple in the zip lock before sealing. This active copper surface will react with any small amount of toning atmosphere before reacting with a &quot;red&nbsp; normal patina&quot; on an untoned cent. If they gets brownish, throw them in the &quot;Take a cent dish&quot; and make replacements.</span></p> <p style="text-align: left"><span style="color: #000000"><br /></span></p> <p style="text-align: left"><span style="color: #000000">Jim </span></p> <p style="text-align: left"><span style="color: #000000"><br /></span></p><p>[/QUOTE]</p><p><br /></p>

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