Do all the ceramic tableware contain lead, but the content is different?

Do all the ceramic tableware contain lead, but the content is different? Ceramic tableware manufacturers will reveal the secret for you: contain lead, which mainly refers to pigments. Therefore, it is best to choose ceramic tableware with pure white inner pots as much as possible. The following are some materials compiled by the editor of ceramic tableware manufacturers, I hope it will be helpful to you. 1. Most porcelains contain lead to a greater or lesser extent, mainly due to color issues. It seems that only blue and white porcelain does not contain lead because the pigments are pure plants. 2. Pottery is fired with clay, and pottery with low firing temperature is fired with clay, and the firing temperature is high. The texture of pottery is coarse and opaque, so it is less used as tableware; while porcelain tableware is dense and translucent, and it is mostly used as tableware. Pure porcelain is harmless to the human body. 3. But in fact, in order to prevent water seepage and beauty of porcelain white porcelin dinnerware, people often apply glaze and colored glaze, which leads to lead in ceramic products. The lead-dissolving star of ceramic tableware mainly comes from the decorative materials of ceramic glaze, such as ceramic pigments and ceramic decals. 4. The picture decoration of chinaware ceramic can be roughly divided into overglaze, in-glaze, underglaze and other crafts. On-glaze ceramics are made of decorative paper made of lead-containing pigments pasted on the glaze surface and baked at a high temperature of 70CC-850°C. Experts point out that this lead compound can be dissolved by acid, and when food comes into contact with pictures, lead can be dissolved by organic acids in the food. From the point of view of the production process, the porcelain alliance of in-glaze and under-glaze is relatively safe. Of course, if the design of the on-glaze color is reasonable and the barbecue technology is appropriate, it can prevent the lead content from exceeding the standard. We use acidic solution to soak the bowls with colorful patterns in accordance with the national regulations, and the soluble lead is lower than the national standard. 5. However, even if you use such a bowl to put acidic food into it, and drink 100ml per day based on the average amount of dissolved lead, the lead of cannibalism can reach 26ug (porcelain bowl) and 3.6ug (imitation plastic bowl), which is equivalent to 2 Young children can consume 74% and 10% of lead per day. What’s more serious is that, in order to reduce costs, some operators purchase cheap decoration materials with high lead and cadmium content and unstable performance. The decoration area is too large, the baking temperature is insufficient, or the process is improper. The amount of lead dissolved does not meet the standard. 6. At present, the domestic daily-use ceramic food and beverage appliance market is still dominated by low-grade products, especially some individuals and private enterprises, who are rushing to work quickly, shortening the baking time or lowering the baking temperature at will, or even using the old ones controlled by experience. The roasting stove has severely restricted the improvement of the overall quality of the industry.

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