How to choose a glass?
Glass is a safe and healthy food container material, which has the advantages of high temperature resistance, low temperature resistance, and less harmful substances. In the process of purchasing and using, in addition to paying attention to the lead oxide composition in the glass, we should also pay attention to the following issues.
Shopping Tips
● Look at the logo. Lead-free glass generally contains potassium, mostly high-end handicrafts and clearly marked on the outer packaging; while lead-containing glass contains lead, mostly crystal glassware commonly found in supermarkets and street stalls.
● Look at heat resistance. Glass cups can generally withstand high temperatures, but generally have poor resistance to extreme cold and heat, and are easy to burst when the temperature difference is large.
● Listen to the sound. The metallic sound of hitting a leaded crystal glass is more pleasing than the sound of hitting a lead-free glass.
● Weigh the weight. Compared with lead-free crystal glass products, lead-containing crystal glass products are slightly heavier.
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