Glass is the healthiest of all cups. Ceramic cups without any harmful substances, but with no colored glaze on the inner wall, are as healthy and non-toxic as glass, so you don't have to worry about damaging your health when using them. Advantages and disadvantages of glass Among all types of cups, glass is the healthiest.

Because it doesn't contain any harmful chemicals, you don't have to worry about drinking water with it, which will affect your health. In addition, the glass is smooth and easy to clean.

Just pay attention to the poor thermal conductivity of glass, so when filling hot water, try to shake the cup with a small amount of hot water and preheat it, so as to prevent the glass from bursting. Of course, you can also buy thin-walled glasses.

There are national standards for ceramics, but there are no specific standards, because its harmfulness is much less than that of plastics. In fact, generally speaking, underglaze color and underglaze color are mostly directly exempt from inspection, and underglaze color is not prohibited from being used on tableware as one of the interviewees said.

In fact, when you see a unique dish, just pick up your little finger and try it. Most of the dishes with foreign body sensation are glazed, because it is really difficult to burn under the glaze/in the glaze with many colors. If these glazed tableware are poisonous, you have to test it. Generally speaking, it won't be a big problem, as long as things are fried above 1200℃.

Heavy metal residues can be ignored. I'm afraid that some manufacturers use the relatively low temperature of 600℃~800℃ to make the color look better, so it's hard to say at this time. Some regions have regional standards, which make way for enterprises. In fact, there are still many unqualified products.