Casserole is made of quartz and other raw materials. It has the characteristics of slow heat transfer and intolerance to high temperatures. If used to cook hot pot, it will cause problems such as insufficient heat. Casserole cannot be cooked over an open flame for a long time. It is best to use electric heating to heat slowly. Using a casserole to cook soup can keep the temperature constant for a long time and reduce heat loss.

. The casserole is made of quartz, feldspar, clay and other raw materials mixed in a certain proportion and then fired at high temperature.