The ones I have measure 3X5" and actually have recharging instructions printed on them. They say to heat them up to 245 degrees for 16 hours....
A design for the South Dakota state quarter that was not approved. It is unusual in that it placed a state design on the front of the coin and a...
I have heard that the cement in fire safes can release moisture. The safe I have is actually designed to be a gun safe, where humidity is also...
I haven't found an airtight container, yet. Even using ziplock bags with silica gel inside, the color indicator turns pink after a while. What...
The Eva-dry units ARE silica gel. Are you suggesting that the plug-in cycle doesn't fully regenerate them? I usually leave them plugged in for...
The room is actually at 52% so the indicator on the dehumidifier may not be accurate. I'll try turning down the dehumidifier in the room to, say...
Does anyone know what the ideal level of humidity is to protect coins from toning or corrosion? I keep my coins in a safe that is fairly...
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