Ordinary glassware can be used for drinking, but in important occasions in Europe and America, crystal cups are often used for drinking. Historically, high-quality crystal cups are valuable, so the use of crystal cups is even a symbol of identity and status.

In the past, a lot of lead was used in the production of crystal glass. The higher the lead content, the higher the transparency and purity of the crystal cup, crystal clear and the better the look and feel. However, modern science has proved that lead in glassware will precipitate into human body with use, and long-term use will lead to lead accumulation and lead poisoning.

However, with the progress of science, it is now possible to produce lead-free intraocular lenses, mainly using potassium instead of lead. At present, the new mainstream of crystal cups in Europe and America is potassium-containing lead-free crystal cups.

It is generally believed that crystal glassware originated in Europe, and the main producing areas are Germany, France, Italy, Czech Republic, Slovakia, Hungary, Austria and other Eastern European countries, each with its own characteristics. Like the well-known Swarovski, we all know that it is because of the "diamond". In fact, there are crystal cups in his product line. There are many famous brands of crystal cups, but many of them may not be distributed in China, such as Baccarat, RIEDEL, St. Louis and Lalique, and they may want to buy them in Hong Kong. Rosenthal's Versace series, seen the advertisement, a pair of crystal cups, more than 4 thousand!