Ceramic tableware diverse, delicate and smooth, bright color and easy to clean, is the majority of families to buy tableware preferred. However, glazed glaze on the ceramic surface is likely to become a health killer. In the glaze of lead, mercury, radium, cadmium, etc. are harmful to the body elements. Radioactive radium can kill white blood cells. Cadmium, lead and mercury are heavy metals, cadmium and lead can cause liver or other visceral poisoning, and mercury can cause liver and kidney sclerosis. The use of substandard ceramic products, these harmful substances will be dissolved, as food into the body, a long time, will cause chronic poisoning. At the same time, the production of ceramic clay should also pay attention to the poor quality of the clay contains more microorganisms and harmful substances, even if the glaze will also harm human health. Therefore, the product specifications and quality is particularly important, the standards of glazed ceramics to the human body is basically no harm, and the seemingly clean color ceramic tableware may be a health risk.