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<p>[QUOTE=&quot;desertgem, post: 3224352, member: 15199&quot;]But that doesn&#039;t mean you can&#039;t do the same with them separated and in a separate&nbsp; tupperware container that fits, but since the paper/cardboard needs some moisture or it will flake apart, I would just use a couple of the small silica gel pkg, such as comes with electronic good.</p><p><br /></p><p>Now for both you need an indicator system as to if it doing the job. So get from change or bank some new shiny copper cents (&nbsp; the ones with&nbsp; copper shell around zinc ( newer the better) and take something like a copper&nbsp; or stainless steel brush and scrub it until you can see bright scratch lines and toss them into the tupperware container and seal it well. Occasionally look at the sacrificial cents, and if they are still bright, your other coins are good, no need to open except to replace tarnished ones. The chemicals that react with copper and silver will do so with the 100% copper shell cent quickest, then&nbsp; near pure bullion silver, the older cents, then the 90% silver, etc.&nbsp; So as long as the sacrificial coins&nbsp; are reacting with any contaminants&nbsp; and you replace them, your good coins are not reacting if the container is undamaged. </p><p>The various protective ( trademarked) devices use colloidal copper or nano copper particles on the surface inside&nbsp; the product to do the same thing , I have been using this process for years and only after summer heat caused a crack in the tupperware did the first cent start to tarnish.</p><p>IMO, Jim[/QUOTE]</p><p><br /></p>

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