when you use it for the first time, you can wash it with some detergent first, and then scald it in water for 3 to 5 minutes. Water-proof stewing pot ceramic liner is to put water in the pot, then put the materials to be stewed into the stewing pot, fill the stewing pot with water, cover the stewing pot, then put it into the pot, then heat the pot, and stew the contents in the stewing pot with hot water in the pot.