this post was submitted on 15 Oct 2024
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Pot-in-pot refrigerator (en.wikipedia.org)
submitted 1 month ago* (last edited 1 month ago) by ProdigalFrog to c/wikipedia@lemmy.world
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[–] ProdigalFrog 3 points 4 weeks ago

the outer pot must be unglazed to allow it to become saturated with water. There's quite a few guides on how to make these, like this one, which detail their capabilities and the materials needed.