how to choose lead-free glass cup with simple methods
how to choose lead-free glass cup with simple methods?
Water is very important in our lives. Every day we drink water a lot. We care about the quality of water, but always ignore the safety of the glass. According to the authoritative data, leaded glass is very harmful. If we use leaded glass for a long time, it will do harm to our blood vessels of the central nervous system and the cerebral cortex. Therefore, in order to have a healthy life, it is of great importance for us to choose lead-free glass cup.
As a matter of fact, there are a lot of knowledge in choosing glass and the usage of glass. First of all, we should know that there are two kind of glass cup. One is normal glass cup, other is crystal glass cup. Also, there are two kind of crystal glass cup: lead-free glass and leaded glass. Now, as a professional glass manufacturer, let me tell you how to choose lead-free glass cups.
- See the component: lead-free glass normally contains potassium. However, if you see the lead in the component, then the glass is leaded glass.
- Watch the color: lead-free glass has stronger refraction than the traditonal leaded glass. Some ornaments are made from lead such as crystal glass cup, crystal lamp and so on.
- Observe the heat-resistance: glass cup is generally resistant to high temperatures, but it is bad in resisting extreme cold heat-resistance. Lead free crystal glass is a high expansion glass, it is even worse in resisting extremely cold heat-resistant. So it is very easy to explode if we pour boiled water in the extremely cold lead-free glass.
There are many metheds to choose lead-free glass cup. If you want to learn more, pls contact us. We will answer you as soon as we can.