> 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

> 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 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.