The firing and application of ceramic tableware has a long history in China. It has a variety of shapes, rich types, colorful, comfortable and easy to clean, which is deeply loved by many people. However, choosing ceramic tableware is also a great knowledge. Once we are negligent, the necessities of three meals a day will unknowingly infiltrate the harm into your body like "poison", and gradually affect our health.
The more glaze colors of ceramics, the more bright colors, and the more compounds such as lead and cadmium. Don't pay too much attention to patterns when choosing ceramic tableware, especially don't use bowls and plates with colored paintings on the inner wall. There are three methods for making ceramic tableware: overglaze color, underglaze color and underglaze color. The overglaze color is fired at high temperature, and the painted patterns on the porcelain glaze are fired at low temperature for the second time. Because the baking temperature can not reach the degree of glaze melting, the flower surface can not sink into the glaze. Touch with your hand, you will feel concave convex on the flower surface; The in glaze color is first glazed, then painted, and then fired at high temperature. It does not contain lead. The pigment can sink into the glaze without concave convex feeling; Underglaze color is to draw various decorative patterns on the formed and dried plain blank with color materials, and then cover it with white transparent glaze or other light color surface glaze, which is fired at high temperature in a human kiln. Underglaze colored porcelain is relatively safe, with more blue-green patterns and less red and yellow patterns. The underglaze color looks bright, flat, smooth and comfortable. When people use microwave ovens, it is best to put white embryo bowls or underglaze color bowls. In contrast, the underglaze color, in glaze color and white porcelain sold on the market do not contain lead and are safer.