Can Glass Cups Be Microwaved?

In this business era that pursues the quality of life, even a small glass can play a lot of tricks. As a result, many people are concerned about questions such as "can the glass be placed in the microwave oven and can the glass be heated?" This is because in life, many people who use microwave ovens want to directly heat the milk, boiling water, coffee and other items in the glass before drinking. But there is also worry that there will be troubles of varying degrees when the glass is heated. So, are glasses microwave safe?

plain glass

Ordinary glass can not be used in oven, microwave oven. The heat resistance of ordinary glass is not particularly good, and the temperature difference it can withstand is only about 60 degrees Celsius. Whether it is rapid heating or rapid cooling, the glass may burst. Therefore, ordinary glass should not be heated in the microwave oven.

tempered glass

If tempered glass that has not been homogenized is used in an oven or microwave oven, there is a risk of self-explosion and injury. Tempered glass should not be heated in a microwave oven. On the one hand, it contains metal components and is fragile when heated. On the other hand, when heated, toxins will be precipitated, which is harmful to health.

Heat-resistant glass

Heat-resistant glass cups can be heated in the microwave. Compared with ordinary glass and tempered glass, heat-resistant glass has a small expansion coefficient and has good high temperature resistance. At the same time, it can withstand extreme cold and extreme heat, so it can also be put into the oven. So if you want to heat drinks such as milk, you can pour them into a heat-resistant glass and then put them in the microwave (high borosilicate glass is also a type of heat-resistant glass).

Special glassware for microwave heating

At present, there are some special glassware that can be heated by microwaves on the market, most of which are lunch boxes, and they often have a special mark "Microwave Available" written on the bottom. At the same time, heat-resistant glass products are obtained through annealing and cooling, and have good thermal stability. When purchasing, if consumers find products labeled as heat-resistant glass but the price is very low, they should consider its authenticity.