Jun porcelain teacups are not poisonous. Jun porcelain teacups calcined at high temperature are not only harmless to human body, but also safer than other porcelains.

The dissolution of heavy metal lead and cadmium in Jun porcelain tea pot is 0.002 mg/L and 0.00004 mg/L respectively. The detection results of Jun porcelain teacups are as follows: the dissolution of heavy metal lead and cadmium is 0.002 mg/L. ..

In addition, from the physical point of view, it is not difficult to find that Jun porcelain, as a high-temperature glazed porcelain, has a much higher firing temperature than other blue-and-white porcelain and purple sand. The highest firing temperature in the reduction firing stage can reach 1380 degrees Celsius, and the duration of high-temperature firing varies from 12 to 48 hours. In such a continuous high temperature state, even if Jun porcelain mud or glaze contains heavy metals, it basically volatilizes, with almost no residue, and it is in a high temperature state.