How to distinguish the lead content of ceramic tableware?

How to distinguish the lead content of ceramic white porcelin dinnerware? The lead content of ceramic tableware is mainly viewed from two aspects, one is ceramic raw materials and the other is firing. The ceramic raw materials are mainly green body raw materials, glaze raw materials, and decorative raw materials. Generally speaking, the clay of the green body is porcelain tableware clay or pottery clay. These two items are basically safe, because there is generally no chemical additives, natural clay or minerals, and only the difference in grade quality. The problem is mainly in the glaze or paint. The glaze forms a glaze surface similar to glass after high temperature. As long as it is a raw ore of the formula, a small amount of chemical industry will not be able to become a climate. Painting materials are more troublesome. Basically, low-cost materials are chemical materials, and color materials contain heavy metals. Therefore, it is conceivable that underglaze colors are relatively safer. So when buying porcelain, try to avoid buying some rare and cheap foreign trade medium-temperature porcelain white porcelin dinnerware with hand-painted patterns. Although there are many ceramic tableware on the market with excessive lead content, it greatly affects the user's use, but also causes potential safety hazards. But everyone does not need to worry too much, because the so-called lead content of ceramic white porcelin dinnerware often appears in the use of pigments, so pure white ceramic tableware is relatively reliable.

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