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> As an aside the Ancient Greeks had a type of wine cooler that worked on evaporative cooling using an exterior porous pot and an internal glazed pot, with wet sand placed in the gap.

https://en.wikipedia.org/wiki/Pot-in-pot_refrigerator

Still in use today, especially in the "developing world" - usually as a means to keep certain medicines and drugs cooled that would go bad without it.



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