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Glass cleaning work
Common glass cups in life refer to cups made of glass, glass cookware ，which are usually made of high borosilicate glass, which is the raw material, after being fired at a high temperature of more than 600 degrees.
Although the glass is transparent and beautiful, it is not easy to store and needs to be stored carefully. In fact, the glass is healthier among the cups of all materials. Because the glass does not contain chemical substances, when people use the glass to drink water or other beverages, there is no need to worry about the chemical substances being drunk into the stomach, and the glass surface is smooth and easy to clean. The glass should be used every day after each use. Carry out the cleaning work, and then dry it. When cleaning the cup, not only the mouth, but also the bottom and walls of the cup must also be cleaned.
Many people like to drink tea, but the tea stain on the cup is difficult to clean. A layer of tea stain on the inner wall of the tea set contains cadmium, lead, iron, arsenic, mercury and other metal substances. They are brought into the body when drinking tea, combine with the nutrients such as protein, fat and vitamins in the food to form insoluble precipitates and hinder the absorption of nutrients. So people who have the habit of drinking tea should clean the glass in time after using it.