The material of crystal glass is generally divided into lead crystal glass and lead-free crystal glass.

Crystal cups generally have a stronger hardness than ordinary glass and are more resistant to wear. High quality crystal cup with high clarity, hard outer wall, in the toast clinking glasses, will emit a crisp, pleasant sound, high-end crystal cup, wine with beauty!

When tasting wine, the aroma and taste brought by the crystal glass and the ordinary glass will be slightly different, the wine in the crystal glass smell is fresh, clean and rich, and the wine in the ordinary glass glass smell becomes very dull, and the smell is not so strong.

(Lead-free crystal glass)

Compared with ordinary calcium sodium glass, crystal glass appearance is smooth and crystal, has a high transparency and refractive index, knock on the back of the crystal cup will emit a crisp and pleasant metal sound, the difference between crystal glass and ordinary calcium sodium glass is still more intuitive and easy.

Secondly, many of the advantages of crystal glass, such as the high finish, the beauty of the colorful refraction, and the crisp and pleasant metallic sound, come from other ingredients added to the main component of glass, silicon (Silica), and lead oxide is the most common additive.

However, due to the toxic side effects of lead metal on the human body, special attention is needed to make food/drink containers such as wine glasses.

The "lead-free" crystal cup in the crystal wine glass is the best in the best, she is added ingredients such as potassium oxide, barium oxide instead of the traditional lead oxide, and the main component of the glass silicon (Silica) boiled together.

Each manufacturer has its secret formula, so that the product is particularly shiny like crystal, but also in the subsequent grinding technology to improve its brightness and permeability, become a higher quality of the best, favored by high-end customers - lead-free crystal cup, its material process cost is much higher than ordinary lead oxide crystal cup.

(Lead-free crystal glass)

Some common crystal glassware in supermarkets or stalls, the lead content may be as high as 24%, such utensils can be used for viewing display, but if used to contain food, especially acidic or alkaline food, lead will slowly dissolve through the food into the human body, causing great harm to the human body.

Therefore, taking into account human safety and health factors, how to distinguish the difference between the two is particularly important!

Lead-free crystal glasses and leaded crystal glasses can be easily distinguished from the following 4 points:

① Lead-free crystal cups have better refraction than traditional lead-containing crystal cups, and more perfectly show the refraction performance of metal glass;

(2) Look at heat resistance: lead-free crystal glass is a glass with high expansion coefficient, light and crisp, but poor resistance to extreme cold and heat;

(3) Leaded crystal glass products are slightly heavier than lead-free crystal glass products;

④ Listening to the sound: beyond the metallic sound issued by the lead crystal glass, the sound of the lead-free glass is more pleasant and beautiful, rich in the reputation of "music" cup.