Ceramic casserole is mainly composed of quartz, feldspar, clay, etc., which is not easy to transfer heat and has low raw materials. Dry firing pots are mainly made of ceramic, iron and steel materials, which can withstand high temperatures. Pottery pot to pottery-based, such as non-specialized, and does not tolerate high temperatures, so ceramic casserole is not easy to heat transfer, dry-fired pots and pans resistant to high temperatures.