- Jan 26, 2012
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It's not the amount of water but the surface area that controls humidity. Start with a shot glass 1" then move up to a small juice glass 1-1/2" then try one of those small Glad plastic fruit storage containers 2" and keep moving up until you get the humidity level you want. Remove the plastic tray from the bottom first (shot glass gets tipsy instead of the shot glass holder).

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