In the Ukraine, milk was used as a glaze. It is a simple and direct way to glaze earthenware with, so they become waterproof. The different temperatures will give different effects, so does the different milks.
Together with Johannes Böving we made bowls and samples made of bone china and glazed with milk. Creating awareness of where the product comes from. Bowls made of cow bone are glazed with cow milk. Bowls made of sheep bone are glazed with sheep milk. It gives a mark to the origin.