This 60ml medium and high temperature coffee glaze special underglaze ceramic art glaze is designed for school pottery bar. It has a firing range of 1186-1305℃ and is suitable for ceramic art projects. To use, shake evenly before applying, and brush 1 to 3 layers on the green body or dry clay body. Make sure to wait until it dries before glazing. The glaze is suitable for edible utensils when used with transparent glaze.