The descriptions and images generally refer to results in electric firings but all can be fired under reduction. The fire in the range 1230-1300C with an optimum of 1260-1280C except where otherwise indicated. 

All stoneware glazes are leadless and suitable for dinnerware, but for practical reasons we don’t recommend matt or special effect glazes are used on surfaces in direct contact with food or drink due to the possibility of staining and/or bacterial growth.

For glaze preparation advice please see the main powdered glaze category header here.