Tea brewing steps:

 In 1884, Otto Schott, who owned an advanced glass factory in Europe at the time, successfully developed a type of borosilicate glass that could withstand high temperatures. This new glass, with a more compact molecular structure than traditional sodium-calcium glass, not only had a smaller thickness and a lighter feel but also had superior durability and exceptional heat resistance. Due to the initial high cost, it was only used for royal European tableware. After a century of development and technological improvements, borosilicate heat-resistant glass has gradually become popular in people's daily lives.

                                       The following advantages of high borosilicate glass:

 1. The material is dense and does not absorb water.

 2. Excellent acid, alkali, and water resistance, especially suitable for making tea and coffee.

 III. From the above two points, it can be concluded that high borosilicate glass products are extremely easy to clean and do not easily form stains, and they remain as bright and new over long-term use.

 Fourthly, the material is hard and wear-resistant, and it can be cleaned in a dishwasher.

 5. Contains no harmful substances to the human body.

 6. Can be used in microwave ovens, heating without burning hands, absorbs microwave very little, saving electricity and energy. Also suitable for freezing in the refrigerator and heating with electric ceramic stove.

 7. It has the characteristics of resistance to sudden cooling, sudden heating, impact resistance, and is not easily fractured, able to withstand instantaneous temperature differences of -30 to 150°C. 8. The transparency is as high as 92%, crystal clear and transparent, making it highly aesthetically pleasing for drinking.

What is high borosilicate glass?

 Gao borosilicate is a special glass with low expansion rate, high temperature resistance, high strength, high hardness, high transparency, and high chemical stability.

 The glass material, which is resistant to instantaneous temperature changes from -30° to 150°, has been widely used by countries such as Germany and the United States.

The process of manufacturing high borosilicate glass?

Adopting high-quality borosilicate glass, it features high temperature resistance, high strength, high hardness, high transparency, and high chemical stability.

 The cup is made by hand through complex processes such as blowing, sealing the bottom, tearing the mouth, and welding.