Glazed ceramic tableware is more and more dangerous
The brighter the color of ceramic tableware, the more likely it is that heavy metals are exceeding the standard. The International Food Packaging Association today issued a consumer warning to remind consumers not to use ceramic tableware decorated with glaze.
It seems that bright and beautiful tableware, if the process is not closed, it is easy to appear heavy metal exceeding the standard, the association secretary Dong Jinshi told reporters that the ceramic tableware production methods are divided into glaze color, glaze color, underglaze color. It is called glaze color when it feels concave and convex; the surface is smooth, and the hand touches the glaze without color. The glaze color is painted on the color picture and then glazed, so it is called underglaze.
The main hazards in ceramic tableware come from the heavy metals. These heavy metals come from the pigments on the glaze. Dong Jinshi said that in the ceramic production process, lead is added to the glaze, and lead and cadmium are added to the pigment to make the glaze uniform and bright. Some enterprises have insufficient control of lead and cadmium, which leads to excessive lead and cadmium. Consumers can always see colorful ceramic tableware with gold-rimmed silver edges when buying. In fact, these gold-rimmed silver edges are heavy metals such as lead, chromium, mercury, and radium.
Dong Jinshi advises consumers: Do not use ceramic tableware decorated with glaze color, especially with food and color. If the glaze can be scraped off with nails when purchasing, it is likely to be an inferior product with heavy metals exceeding the standard. Therefore, try to choose white porcelain tableware. Ceramic tableware purchased should be boiled for 5 minutes in boiling water or immersed in vinegar for 2 to 3 hours. This can remove most of the toxic substances and reduce the potential harm of ceramics to the human body.
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