1230 degrees high temperature firing, Non-toxic glaze, can be used with peace of mind. size: The diameter is 10.5 cm x 8 high cm (13.5 cm with handle), about 300 ml. Precautions: *All items are 100% handmade. Each piece is uniquely drawn by hand. The glaze color and the non-mechanical work are uniform. There are a lot of hand-made traces, each one is slightly different, and you can accept another order.