1, by hand: Because the crystal thermal conductivity is stronger than glass, so when you touch the crystal by hand, it should be cooler than the touch glass.

2, look at the hardness: natural crystal hardness of 7, glass hardness of 5, so crystal can score glass.

3, look at the refractive: lift a crystal cup, rotate against the light, you will find it is like a beautiful crafts, white, clear, reflecting the fascinating multicolored light, because the crystal can absorb the luster, even Ultraviolet rays, while ordinary glassware has no gloss and no refraction.

4, listening to the sound: lightly tapping or using a finger to hit the vessel, the crystal glass can emit a light and brittle metal sound, and swaying out the beautiful reverberation in the air, while the ordinary glass only has a boring "咔, 咔"sound.

The common synthetic crystal cups on the market should be accurately lead glasses, which increase their refractive index and dispersion (gloss) after the lead content is high.

Crystal Cup Features

The crystal glass will give off the sleek metal sound crystal glassware will shine, reflecting the colorful light, while the ordinary glassware has low gloss, no refracting light, can not give people a crystal clear beauty.

Holding a crystal cup, you will feel a thick, calm hand.

Crystal cup craft

The crystal cup body is made of high-grade crystal glass and processed with high skill. It adopts high temperature firing process of 640 °C to reach the critical point of melting of crystal glass. It is transparent, pure and non-toxic, and adopts annealing process to ensure the cup body can It is subjected to the instantaneous change of cold and heat, explosion-proof and anti-cracking, no tail vacuum, high transparency, strong crystal feeling and wear resistance. It is crystal clear, elegant and generous.

At the same time, the double-layer glass structure has certain cooling and heat-preserving effects; the cup mouth is polished and smoothed by a special process, and the taste is comfortable when drinking; the use is more convenient, the design is more reasonable, and the humanization is more humanized. Advantages of the crystal cup: As an important member of the cup product, it has gradually shown its advantages in drinking water.