Antique newest "Keulse Pot", glazed waterproof stoneware jug.

Antique "Keulse Pot", glazed waterproof stoneware jug.

A Cologne pot/jug is a stone pot/jug that has been used for centuries to store vegetables, meat and eggs. The Cologne pot/jug is made of ceramic material with a layer of salt glaze. This layer of newest glaze ensures that the pot is watertight.