salt glaze
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Salt glaze is one of the most important glazing and firing processes in the production of ceramics, which has existed for many centuries and is still used today in industrial production. After creating the basic form of a ceramic, sodium chloride, ie classic household salt, is added to the kiln for the firing process. As the temperature rises, the salt begins to burn, and the smoke is released. A chemical process produces sodium oxide, which deposits on the outer layer of the ceramic and thus lowers its melting temperature. In the further course of the firing process, the surface structure of the ceramic and the superimposed layer of sodium oxide create a glazed and shimmering outer layer, which is perceived as a true glaze. As a result of glaze, salt glazing proves to be a simple and natural working step, which can also be used outside of the industrial production of vases and plant pots. A glimpse of the glaze is there for the first time adverse weather.
