1. You can put the cup in the refrigerator, refrigerate it for 24 hours, and pour 100 degrees of hot water. If it bursts, it must not be high borosilicate glass.
2. High borosilicate glass has better transparency, more delicate body and smoother hand feeling. High temperature resistance, resistance to sudden cold and heat are the main characteristics of high borosilicate glass products.
3. A glass is a cup whose raw material is glass.Usually, the raw material is high borosilicate glass, which is fired at a high temperature of more than 600 degrees.It is a new type of environmentally friendly teacup and is more and more popular.