Gas FireI use three different kinds of clay when making stoneware, two with iron in the clay body and one without (white stoneware). This high-fire clay was first fired in China around 1400 BC, and the ware is dense, opaque and non-porous. I decorate on the raw clay (greenware) and also once the clay has been bisque-fired, before glazing. I mix my own glazes from raw materials and after glazing I fire the work in an electric kiln (oxidation firing), reaching about 1230 degree C. All stoneware pieces are food- and liquid-safe, dishwasher safe and can be used in a microwave as well as a regular oven.