Newly purchased ceramic dishes can be cleaned as follows:
1. First soaked with hot water to clean it again, mainly to remove the dust and water-soluble residue attached to the surface of the dishes.
2. Add 4% to 5% of vinegar to the water, boil and put in tableware and soak for 1-2 hours. The purpose is to neutralize trace amounts of alkaline residues; the new ceramic tableware contains a small amount of free lead and can also be passed through. One step clears.
3. The washed ceramic dishes are cooked in salt water for a while, so that they are not easily broken during use and can prolong their service life.