Soda-Fired

Soda firing is a vapour-glazing processes where  soda ash (sodium carbonate), or baking soda (sodium bicarbonate) is introduced into the kiln at a high temperature. The soda vaporizes, and sodium binds to the silica in the clay surface, forming a hard, glassy glaze with varying colours and textures.  

This small batch series has a celadon liner glaze on the inside and was unglazed on the outside when they entered the kiln.   The outside glaze is a result of soda vapours bonding to the silica in the clay during firing.