It is an acid-resistant and alkali-resistant clayey siltstone, which contains a variety of minerals, including hydromica, kaolin, Yingshi, mica, iron and so on. The main chemical components are iron oxide, silicon oxide, calcium oxide and so on.
Does not contain any harmful metal substances, and is rich in trace elements needed by human body, such as iron, silicon and calcium. , can decompose fat in food and lower cholesterol. Purple sand ware can not only preserve the nutrients in the cooking process of food, but also avoid the intake of harmful metal elements.