The glass cup is the healthiest of all cups. It does not contain any harmful substances, but the ceramic cup with no color glaze on the inner wall is as healthy and non-toxic as the glass cup, and there is no need to worry about harming the body when using it. The pros and cons of glasses Of all types of glasses, glasses are the healthiest.
Because it does not contain any harmful chemicals, you can drink water with it without worrying about ingesting chemicals, which will affect your health. And the glass is smooth and easy to clean.
Just note that the thermal conductivity of the glass is not very good, so try to shake the body of the glass with a small amount of hot water before preheating it, so as to prevent the glass from bursting. Of course, you can also buy glasses with thinner walls.
Ceramics have national standards, but because they are far less harmful than plastics, there are no specific standards. In fact, in general, most of the underglaze and underglaze colors are directly exempt from inspection, and the overglaze color is not allowed to be used on tableware as one of the respondents said.
In fact, when you see a more fancy plate, pick up your little finger and try to dig it. Most of the foreign body sensations are still on the glaze, because the multi-colored underglaze/underglaze is really difficult to burn. These Whether the on-glaze color tableware is poisonous or not has to be tested. Generally speaking, the problem is not very big, as long as the things fired above 1200 ℃.
The heavy metal residues can be ignored. The fear is that some manufacturers use a relatively low temperature like 600℃~800℃ to make the colors look better. At this time, it is hard to say. Some areas have regional standards, these The regional standard is to make way for the enterprise, but in fact there are still many substandard products.
Post time: Mar-08-2022