When buying and using bone China cups, note the following:
1, the purchase of bone China cup must choose the regular market, must not be cheap to buy no formal manufacturers of inferior products. The bone China cup was soaked in 4% acetic acid, and the dissolution amount of lead should not be greater than 7 mg/l, and the dissolution amount of cadmium should not be greater than 0. 5 mg/l. At present, the products of regular manufacturers can basically meet this requirement;
2, when buying, pay attention to the color of the bone China cup, touch the surface of the cup with your hand to see whether the inner wall is smooth;
3, smell with the nose whether there is an odor;
4, do not buy too bright color bone China cup. In order to make the color bright, manufacturers will add some heavy metal additives in the glaze, therefore, the more bright the color of the cup, the more easily the heavy metal exceeds the standard;
5, should buy raw materials, process control more strict glaze color, underglaze color cups;
6, the cup is boiled in boiling water for 5 minutes before use, or soaked in vinegar for 2-3 minutes to dissolve the toxic substances in the cup.
Post time: Sep-19-2023