Ceramics are traditional Chinese utensils. They have various pictures and colorful colors, and are very popular among people. Many people’s cups, bowls, and plates at home are all kinds of ceramics. When many people see beautiful ceramics, especially when they see various ceramic crafts while traveling, they can’t help but buy them home. However, recently, many people have left messages asking me, it is rumored that the beautiful and photogenic ceramic cups are poisonous. Due to the paint on the exterior, there are heavy metals such as lead and cadmium, so try not to use them. is this real? Are there really heavy metals in ceramic cups? Can you still use it? Today, the ceramic cup manufacturer Weiao Ceramics will talk about this topic.
Ceramic mugs contain heavy metals! Is it still usable?
Ceramic cups are generally obtained by calcining inorganic materials such as clay at high temperature. There will be a transparent “glaze” composed of high-purity clay on the surface. In order to draw various beautiful pictures, of course, various pigments are used. As an environmental pollutant, heavy metals are unavoidable for anything, including the food we eat. Due to the pollution of water, soil and air, there will also be heavy metals.
It is said on the Internet that the risk of heavy metals in ceramics, especially those using the “glaze color” process, is relatively high, so try not to buy them. Is it really so? It is true that some ceramic cups have pictures on the inner walls, of course, pigments are used. We are justifiable to worry that the pigments of these pictures may contain heavy metals such as lead and cadmium. So, is it really not usable?
In general, the painted surfaces of underglaze and in-glaze colors are separated by enamel and do not directly touch water or beverages, so the guarantee factor will be much higher; while the painted surfaces of on-glaze colors directly touch food, In addition to being unhealthy, it is easier to separate after encountering acid, and the risk factor is indeed higher.
