1. It is recommended to scald with boiling water for 5 minutes for the first time. Boiling water can play the role of sterilization, and then soak it in vinegar at room temperature for 1-2 hours, because ceramics will precipitate some toxic substances when they encounter acidic substances. Restless dishes can be soaked in vinegar for several hours. If the color changes obviously, it should be discarded.

2. When washing dishes, use a soft rag, scouring pad, decontamination powder, etc. It is easy to scratch the surface of dishes, and it is easier to be polluted. It's best not to use them. At the same time, try not to hold acidic, oily and alkaline foods for a long time during use, especially don't put dishes with more oily foods in the microwave oven to prevent toxic substances from precipitating. If you want to put it in the microwave oven, avoid metal decorations, such as plates with silver edges in Phnom Penh or inlaid with gold paper, metal wires and wires.