How To Identify The Quality Of Glass By Material?

The glass is a pure and refreshing existence in hot summer. The sun shines through the clear glass body to reflect the summer time. Choose a glass that suits your heart to accompany you through the whole summer!

If the glass material is impure, there will be lines, bubbles or sand on the glass drinking utensils.

"String" refers to the appearance of streaks on the surface of the vitreous body. Coarse lines can be felt by hand, but fine lines can only be seen by facing the light.

"Bubble" refers to the small cavity formed by enclosing air in the glass body, which can be divided into material bubble and operation bubble according to the cause of formation. The material bubble lives in a relatively deep place in the vitreous body, and looks like a small circle from the outside. The operating blisters are relatively exposed, some are raised like fish eyes, and will be pierced with a light poke; some are like small scars on fruits, which are easy to peel off layer by layer.

"Sand" refers to the unmelted white granular silica sand embedded in the vitreous body, and also generally refers to other granular impurities. When the sand is embedded in a thicker bottom or under the cover of brushed color, it is more difficult to find. Due to the different composition and expansion coefficient of sand and glass, a slight collision will separate from the glass body, resulting in glass cracking; sometimes, although there is no collision, the sand will also separate from the glass body due to temperature changes, causing the glass to burst automatically.