Tenmoku Chawan Porcelain Cone 10 Gas Oxidation 4.5 x 4.5 x 3 This kurinuki chawan (Tea Bowl) was carved by hand out of a solid shaped block of fine grolleg porcelain. It was then glazed & fired to Cone 10 (about 2350F, 1287C). The clay is completely vitrified at this temperature & can safely be microwaved & washed in the dishwasher. Tenmoku Porcelain Matcha Chawan, Black Ceramic Tea Bowl
