The technique of RAKU firing comes originally from Japan, where it used to be a part of tea ceremony. RAKU in its Western form comes from North America. For my RAKU pieces I use stoneware with fine or coarse grog or porcelain. Bisqued RAKU pieces I glaze with simple clear glaze sometimes coloured by copper oxide. I use small self made gas kiln and take the pieces at temperature of about 1000°C/1800F out of the kiln, reduce them in wood shavings in metal containers. The temperature shock as well as the special glaze cause crakes in the glaze so called crackle, unglazed parts become black. If you are interested in firing RAKU with us, please see WORKSHOPS.