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How much is the ice-maker attachment?


I've seen this work with clay water storage jars - I'm surprised that no one came up with this invention sooner. It's funny how ideas sit around for a long time before someone finds a way to use them, or use them better - like the ancient Greeks having steam power but thinking it was just a cool toy.


This is not a new invention except at this scale. Butter bells are based on the same idea as a way to keep butter spreadable but not spoiled in the summer in a jar on your counter.

Good that it's being used in this way.

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