Luxury Glass Filter Kawa Teacup Office Exquisite Tea Cups Heat Resistant Infuser Teaware – 450ML

Glass type : Borosilicate heat-resistant glass

Q : There is a lot of boron trioxide in borosilicate heat-resistant glass, which is poisonous. Why are cups and feeding bottles made of this material?

A : First of all, the toxicity of borate is very low. Even if it is boric acid, it will not cause fatal injury if a person eats 100 grams. Second, borate exists in glass in the form of borosilicate and is insoluble Water, acid, etc., in the usual use environment, there will be no exudation and dissolution of any borate. Third, the heat resistance and thermal shock resistance of borosilicate glass are good, and compared with ordinary glass, it is more It is not easy to burst, so it is a good material for cups and bottles.