How to Pick the Double Wall Glass Cup


Time of issue:

Apr 20,2022

Most ordinary glass cups are made of high temperature silicon. Double Wall Glass Cup is made of high boron heat-resistant glass, which has high heat resistance and corrosion resistance as a green and environmentally friendly glass material.

Most ordinary glass cups are made of high temperature silicon. Double Wall Glass Cup is made of high boron heat-resistant glass, which has high heat resistance and corrosion resistance as a green and environmentally friendly glass material. Elegant, a great companion for brewing tea and healthy drinking.

Double Wall Glass Cup

How to choose the Double Wall Glass Cup:

The quality of the material should be pure: if the glass material is not pure, there will be lines, bubbles or sand on the glass drinkware.

"Wrinkle" refers to the appearance of stripes on the surface of the vitreous body. The rough lines can be felt by hand, and the fine lines can only be seen when facing the light.

"Bubble" refers to the small voids in the vitreous body formed by enclosing air. According to the reasons for the formation, it can be divided into two types: material bubbles and working bubbles. The material bubbles live in a relatively deep place in the vitreous body and look like a small circle from the outside, and the working bubbles are relatively exposed. , Some are raised like fisheyes, which can be pierced by light poking, and some are like small scars on fruits, which are easy to peel off layer by layer.

"Sand" refers to the white granular silica sand embedded in the glass body without melting, and also refers to other granular impurities. When the sand is embedded in a relatively thick bottom or under the cover of brushed color, it is more difficult to find. The composition of the glass is different, and the expansion coefficient is different. Therefore, the glass will be separated from the glass body after a slight collision, causing the glass to crack. Sometimes, although there is no collision, the sand will also be separated from the Double Wall Glass Cup due to temperature changes, causing the glass to burst automatically.

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