A voluminous vessel made of porous clay, on the top of which there is a handle and two openings: a wide one for filling and one in the form of a spout for drinking. The principle is simple: the water inside filters through the porous clay and evaporates on contact with the hot, dry exterior of the Mediterranean summer, thus lowering the temperature. The reason for the cooling is that as the exuded water evaporates, in order to do so it takes up some of the thermal energy stored within the jug.


  • Title: Botijo (Jug)
  • Type: Household items
  • External Link: More info
  • Medium: Clay
  • Inventor: Anonymous
  • Invented in: Spain

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