1. What is a double-layer glass?

There are many types of glasses, generally divided into single-layer glasses, double-layer glasses, crystal glasses, glass office glasses, glass cups, etc. Double-layer glass, as the name suggests, is a glass that is divided into two layers when it is made, which can play a role in heat insulation and anti-scalding during use. Its raw material is high borosilicate glass, food-grade catering grade glass, which is fired at a high temperature of more than 600 degrees. It is usually made of high borosilicate glass tube, and the inner and outer tubes are baked by a technician under a sealing machine.

2. Is the double-layer glass insulated?

Double-layer glass is mainly for heat preservation and heat insulation. At the same time, ice cubes can also be stored. Many glass manufacturers have double-layer ice buckets. The vacuum double-layer cups with compartments are generally blown by hand. The middle compartment is not vacuum at all. There is a vent hole at the bottom of the outer layer of the cup to discharge gas during the blowing process to prevent the cup from deforming and bursting. Seal the hole after the production is completed. There is gas in the middle. If it is a vacuum, the cup will make a loud noise when it breaks, and it will blow up glass fragments, which can easily injure people.

Three, what are the advantages of double-layer glass

1, not easy to absorb other smells

In the production process of the double-layer glass water cup, due to the special fineness of the material, the absorption capacity for other flavors is not strong, so the double-layer glass water cup is made even if you want to drink light water after making strong tea, compare it to drinking In light water, you can't smell the strong tea you made before.

2, friction resistance

In the process of making double-layer glass water cups, due to the relatively high hardness of the material, the double-layer water cup made is particularly resistant to friction. For those who have a dishwasher at home, the dishwasher can also be directly cleaned. Double-layer glass water cup.

3, good material

Compared with ordinary glass water cups, the material used in the double-layer glass water cup is stronger, and the material of the double-layer glass water cup is also denser. The cup is not easy to be stained with water during use, and it is also easy to clean. More convenient.

4, not easy to crack

Compared with single-layer glass, double-layer glass has higher process requirements. Due to higher process requirements, double-layer glass is not as easy to crack as single-layer glass.

5, the appearance is more unique

In the process of making a double-layer glass water cup, because there is a layer of glass on the inside and a layer of glass on the outside, it looks better than single-layer glass from the outside, and has a wider aesthetic value than single-layer glass.

6, good heat preservation effect

Compared with the single-layer glass water cup, the double-layer glass water cup is double-layer glass, and it has been melted at high temperature during production. If the double-layer glass water cup is put into hot water, the heat preservation effect is better than that of the single-layer glass. The water cup is much better.

7, prevent burns

If you want to buy a glass drinking glass for yourself, it is recommended to buy a double-layer glass drinking glass. Compared with a single-layer glass drinking glass, the double-layer glass drinking glass will not be hot if there is boiling water in the drinking glass. If the temperature is relatively high, the single-layer water cup is easy to burn your hands.

Four, the difference between double-layer glass and single-layer glass

The simple sentence is: the double-layer glass is vacuum-filled between the two layers of glass, which can be insulated, and it is not hot to hold. Single-layer glass does not have a vacuum layer in the middle, and the heat is released relatively quickly, and you will feel hot when pouring hot water.

Holding time after cover: double-layer glass>single-layer glass.

Recommendation: If you like to drink warm water and you always have a cup of cold water, you can just use a single-layer glass.

If the above conditions are not met, it is recommended to use a double-layer glass. Prevent burns!