2. soak the casserole. After washing, soak the casserole in water for 3 hours so that the casserole can absorb water.

3. Cook rice in the pot, and add seven points of water to the pot. The cooked rice slurry will penetrate into the wall of the casserole and block the tiny cracks inside to prevent water leakage in the future. In addition, it can also remove the earthy smell and prolong the service life of the casserole.

4. Let the casserole stand. After turning off the fire, pay attention to put the freshly cooked casserole on the dry wooden board and straw mat, not directly on the floor and concrete floor. Otherwise, the casserole will crack when it is cold, cover it and stew for half an hour, then fill it with water, and stir the rice porridge evenly all night, so that the rice slurry can better penetrate into the casserole and block the tiny air inside without cracking.