There is a “four character formula” for buying ceramics, namely “see”, “listen”, “compare” and “try”.
“Look” is to observe the ceramics carefully from top to bottom, inside and outside. Check whether the ceramic glaze is smooth and lubricated, and whether there are scratches, small holes, black spots and bubbles; Second, check whether the shape is regular and deformed; Third, the picture is intact; IV. check whether the bottom is flat and must be placed stably without burrs.
“Listening” is to listen to the sound when tapping the ceramic gently. If the sound is crisp and pleasant, it means that the porcelain body is fine and dense without crack. When it is fired at high temperature, the porcelain is completely melted. If the voice is dumb, it can be concluded that the porcelain body is cracked or incomplete. This kind of ceramics is easy to crack after cold and heat changes.
“Ratio” is comparison. For supporting ceramics, compare various accessories to see whether their shapes and picture decoration are consistent. Especially for complete sets of blue and white porcelain or blue and white porcelain, because the color of blue and white varies with the firing temperature, the same blue and white porcelain has deep and light colors. A set of several or even dozens of complete sets of cold ceramics. If the color of blue and white varies significantly, this set of ceramics will be greatly inferior.
“Trial” means trial cover, trial assembly and test. Some ceramics have covers, and some ceramics are composed of several components. When selecting ceramics, don’t forget to try to cover the covers and assemble the components to see if they are appropriate. In addition, some ceramics have special functions, such as dripping Guanyin, which can drip automatically; The Kowloon justice cup will leak out when the wine is filled to a certain position. So try it to see if its function is normal. Master Yang Ming’s hand painting · under glaze colorful family bottle 2. China teaches you the purchase of ceramic tableware. Ceramic tableware has diverse shapes, delicate and smooth, bright colors and is easy to clean. It is the choice for most families to buy Tableware. However, the colored glaze on the ceramic surface may become a health killer. Lead, mercury, radium and cadmium in colored glaze are harmful elements to the body. The radioactive element radium can kill white blood cells. Cadmium, lead and mercury are heavy metals. Cadmium and lead can cause poisoning, and mercury can cause hardening. When using unqualified ceramic products, these harmful substances will dissolve out. As food enters the human body, it will cause chronic poisoning over time. At the same time, we should also pay attention to the clay for making ceramics. Poor clay contains more microorganisms and harmful substances. Even if it is not glazed, it will damage human health. Therefore, the specification and quality of products are particularly important. Up to standard colored glazed ceramics are basically harmless to human body, while clean looking colorless ceramic tableware may bury hidden dangers for health.