1, the new casserole to open, you can smear oil on the bottom of the pot, let it stand for a day and then wash it, and boil water once to keep the casserole, for example, boiling with rice water can prevent the casserole from cracking in the process of use. And use a small brush to brush away the many small grains of sand on the inside of the casserole to prevent them from falling into the food.

2, the first time you use the casserole, it is best to make noodle soup or porridge first. Don't rush to wash it after eating, put the pot on the stove and bake it to make the batter in the pot dry and plug the fine sand holes on the wall before washing it, so that the casserole will not leak. Note that do not pour cold water directly into the hot casserole, otherwise the casserole is prone to burst.