1. The brighter the color of the bowl, the easier it is for heavy metals to exceed the standard. In order to pursue colorful effects, manufacturers will add some heavy metal additives to the glaze. Due to excessive heavy metals, the dissolution of lead and cadmium from ceramic tableware often exceeds the national standard. So, don't use ceramic tableware with too bright colors.
2. Porcelain tableware has become the first choice for most families to buy tableware because of its diverse shapes, exquisite smoothness, bright colors and easy cleaning. However, the colored glaze on the ceramic surface may become a health killer. Lead, mercury, radium, cadmium and other elements in colored glaze are harmful to health. Radioactive element radium can kill white blood cells. Cadmium, lead and mercury are all heavy metals. Cadmium and lead can cause liver or other visceral poisoning, and mercury can cause liver and kidney sclerosis.