The difference between porcelain bowls and glass bowls is that porcelain bowls are made of clay and have toughened components. Glass bowls are made of limestone and other raw materials. During the molding process, it experienced drastic temperature change and shape change, which left thermal stress in the glass. This thermal stress will reduce the strength and thermal stability of glass products.
The colors of porcelain bowls are different, too. The colors are very rich. In fact, from a health point of view, white porcelain bowls are the best. The whiter the color of white porcelain bowls, the better the quality of porcelain clay used for making porcelain bowls, but the higher the corresponding cost, the higher the color price of porcelain bowls.
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Precautions:
Ceramic tableware contains heavy metal elements such as lead, mercury and cadmium, which are easy to cause liver poisoning and renal sclerosis. These harmful metals mainly come from the paint on the inner wall, so the more glaze of ceramics, the more compounds such as lead and cadmium. When using ceramic tableware, don't use bowls or plates with painted inner walls to hold rice or soup, and try not to heat them in a microwave oven.
Because the underglaze color is painted first, there is no need to add lead to the pigment, while the underglaze color is painted first and then painted, and the pigment contains lead. Compared with the color in the glaze, the pigment in the underglaze color is not easy to precipitate and is relatively safer. It is recommended to purchase and use. Before use, clean it with hot water, then soak it in vinegar to filter out harmful metals.
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