1. When purchasing ceramic water cups, you must choose a regular market, and you must not be greedy for cheap products that do not have official manufacturers. According to national regulations, soak ceramic water cups in 4% acetic acid, the dissolved amount of lead shall not exceed 7 mg/L, and the dissolved amount of cadmium shall not exceed 0.5 mg/L. At present, the products of regular manufacturers can basically meet this requirement;
2. Pay attention to the color of the dinnerware when buying, touch the surface of the dinnerware with your hands to see if the inner wall is smooth;
3. Use your nose to smell if there is any peculiar smell;
4. Do not buy ceramic dinnerware with too bright colors. In order to make the color bright, the manufacturer will add some heavy metal additives to the glaze. Therefore, the brighter the color of the dinnerware, the easier it is for the heavy metal to exceed the standard;
5. In-glaze and under-glaze dinnerware with strict raw materials and process control should be purchased;
6. Boil the water cup for 5 minutes before use, or soak it in vinegar for 2-3 minutes to dissolve the toxic substances in the water cup.
Post time: May-04-2023