How big is the risk of heavy metals in ceramic tableware?

It is said on the Internet that ceramic tableware, especially ceramic tableware with 'on-glaze' craftsmanship, may have a higher risk of heavy metals, so it is best not to buy it. Is this really the case? The following editor of ceramic tableware manufacturers will tell you. Indeed, some ceramic tableware has patterns on the inner wall, and of course pigments are used. It is forgivable that people worry that the pigments of these patterns may contain heavy metals such as lead and cadmium. So, is it really unavailable? According to the different crafts, the current painted chinaware ceramic are mainly divided into three types: overglaze, underglaze and underglaze. 1. On-glaze color This kind of ceramic tableware is first formed into glaze, then colored, and then fired at low temperature, the pigment is on the surface of the glaze. Not only does it look at the pattern, but it also feels 3D to the touch. For such ceramic white porcelin dinnerware, the heavy metals in the pigments are easier to ooze out. 2. In-glaze color The baking temperature of the in-glaze color can make the glaze melt, and the pigment can sink into the glaze, and be covered by the glaze layer after cooling. The surface of the product is smooth and there is no obvious bumpy feeling when touched. 3. Underglaze color All the color decoration of the underglaze color is carried out on the porcelain white porcelin dinnerware blank. After applying the glaze, it is fired at a high temperature. The surface of the flower is covered by the glaze layer, which looks bright, flat and smooth to the touch. In general, the painted surfaces of underglaze and in-glaze colors are separated by enamel and are not in direct contact with food, so the safety factor is much higher; while the painted surfaces of overglaze colors are in direct contact with food, except for themselves In addition to being unhealthy, it is easier to precipitate after encountering acid, and the risk factor is indeed greater.

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