Is the underglaze colored bowl poisonous?

Under-glaze color, in-glaze color and over-glaze color in porcelain may be toxic.

Ceramics are resistant to acid and alkali and high temperature, and are most suitable for steaming, boiling, burning and baking all kinds of Chinese food.

However, a national quality inspection result shows that 1/4 ceramic tableware contains heavy metals such as lead and cadmium, which are unqualified products.

One of the most important reasons why painted ceramics are toxic is that in order to ensure the good combination of pigments and ceramic tires, some cosolvents are added during painting. The cosolvents contain a certain amount of toxic substances such as lead and cadmium, especially yellow and green.

When people choose bowls, plates and the like, they'd better choose yellow and green carefully. It is best to choose a pure white colorless unprinted container or a pure white porcelain vessel inside.

When purchasing and using ceramic tableware, we should pay attention to the following points:

1. Try not to choose glazed porcelain when buying tableware or tea sets. If you choose glazed porcelain, don't choose glazed tableware that is too fancy. Because the painted pigments contain many harmful metals such as lead and cadmium, long-term use of glazed tableware will lead to the dissolution of harmful metal pigments in tableware, which will easily lead to chronic poisoning with food entering the human body.

Therefore, when purchasing, consumers should try not to choose bowls and teacups with exquisite colorful ornaments on the inner wall.

2, should choose and buy raw materials, process control strictly underglaze tableware. When buying tableware or tea sets, buyers who like exquisite paintings had better choose underglaze tableware. The underglaze color process is to draw color patterns on the porcelain blank, then glaze it, and finally put it in a kiln for high temperature firing.