Ash glazes are made from the ashes of various types of wood or straw. They contain only water, clay and ash. We’ll of course never know for sure, but it is likely that this type of glaze was discovered by accident, when ash from a wood kiln fell onto pottery that was being fired. Eureka!
The colour of ash glaze is dependent on the type and amount of ash it contains. Mainly you get organic colours like browns and greens. Because you can’t control the exact proportions of the particles in the ash, you never get the same result twice. It’s all up to the whims of nature….
