Tag Archive: how to make humidity disks

How to Make Humidity Disks for Herb Jars

Grubbycup Stash

Simple homemade clay humidity disks (a.k.a. “Grubbycoins”) can be used to extend and improve the life of dried herbs and spices by helping regulate humidity. Clay particles when bisque fired will fuse together enough that they will no longer separate in water, but the overall structure remains porous enough to absorb or release moisture. Bisque…

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