Everyone must be very familiar with the glass. Maybe you are drinking with the glass in your hand now. In the choice of glass, many users will worry about whether they should choose single-layer glass or double-layer glass. Double layer glass, as the name suggests, is a glass divided into two layers when it is made. Single layer glass is a cup made of single layer glass. This is the most obvious difference in appearance, but it’s different. Let’s tell you in detail about other differences.
1. Manufacturing process
The two are similar in manufacturing process. Generally, they are processed with high-quality high borosilicate crystal glass pipe and made by burning paper at a high temperature of more than 600 degrees. They have strong adaptability to temperature changes and are not easy to burst. The double-layer glass has more thermal insulation layer. The thermal insulation vacuum layer is generally blown manually. The middle compartment is not vacuum. There is an air outlet in the outer layer of the cup. In order to help discharge the gas and prevent the cup from deformation and cracking, the hole is sealed after production. There is gas in the middle. If it is vacuum, the broken cup will make a loud noise and blow up glass fragments, which is easy to hurt people.
2. Capacity
With the same volume, the capacity of single layer is larger and that of double layer is smaller.
3. Thermal insulation effect
The heat preservation of double-layer glass after covering is greater than that of single-layer glass. The double-layer glass adopts a double-layer heat insulation structure, which reduces the thermal conductivity of the cup body. It is not only not hot, but also has certain heat insulation. There is no vacuum design in the middle of the single-layer glass. The heat is dissipated quickly. Pouring hot water will feel hot.
4. Usage
Double layer glasses are mostly equipped with tea leaves, which is suitable for friends who like to drink tea to make all kinds of tea; Single layer glass is mostly used for drinking ice water or cold drinks. In midsummer, it’s best to hold a cold drink.
Double layer and single layer, different people have different needs. Just choose what you like.
