The casserole cannot be used if the clay layer is exposed.

Casserole is a kind of cooking utensil. Traditional casserole is a ceramic product made of quartz, feldspar, clay and other raw materials that are not easy to conduct heat. It is fired at high temperature and has air permeability, adsorption and heat transfer properties. It has the characteristics of even heating and slow heat dissipation. Recipes that rely on casserole include chicken casserole, tofu casserole, fish head casserole, etc.

Due to problems with the production process and raw materials, traditional casseroles are not resistant to changes in temperature differences, are prone to bursting, and cannot be dried. In response to this problem of traditional casseroles, after research and development and improvement in the past ten years, the raw materials have been added Spodumene is used to create high-temperature-resistant casseroles. While maintaining the original advantages of the casseroles, they can also withstand high temperatures of hundreds of degrees without cracking, greatly improving the practicality of the casseroles.

In addition, pottery clay is a raw material for pottery with complex mineral composition, mainly composed of kaolinite, water muscovite, montmorillonite, quartz and feldspar. The particle sizes are inconsistent and often contain sand, silt and clay. , with water absorption and adsorption properties, plasticity after adding water, impure color, often with yellow, gray and other colors, so it is only used in pottery manufacturing, and the traditional casserole is a type of pottery. The invention of pottery is the development of human society An epoch-making symbol in history and the greatest invention in human development. Legend has it that Emperor Yao invented the casserole, which has a history of thousands of years.