swedishrefugee: ultrafacts: A pot-in-pot refrigerator, clay pot cooler is an evaporative cooling refrigeration device which does not use electricity. It uses a porous outer earthenware pot, lined with wet sand, contains an inner pot (which can be

swedishrefugee: ultrafacts: A pot-in-pot refrigerator, clay pot cooler is an evaporative cooling refrigeration device which does not use electricity. It uses a porous outer earthenware pot, lined with wet sand, contains an inner pot (which can be

tags: Funty,

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