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<p>[QUOTE=&quot;desertgem, post: 2481757, member: 15199&quot;]If they were formerly inserts in medication, they are different than the normal mineral of silica, meaning they should not be heated to the temperatures mentioned often on the internet to recycle ( dehydrate) them for reuse. If they have a color internally, they probably can be used until the color changes. I have reused some by dehydrating them in desert temps if the humidity is around 15% until the indicator reverses. If no indicator ,find a post 1982 bright cent in change and rough up the surface with a scrubber and put it on top. It will react with moisture and environmental gases before the silver will ( sacrificial ), then change or dehydrate the silicas.[/QUOTE]</p><p><br /></p>

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