The thermos cup brings great convenience to people's life because of its good insulation performance. In addition to using a thermos cup to hold hot water, a thermos cup is also used to make tea or other drinks. The city’s nutrition and health expert Li Hongzhu suggested that the thermos cup is not suitable for making tea, nor is it suitable for milk, Chinese medicine, carbonated drinks and other beverages.
Use a vacuum flask to make tea. The tea leaves are easy to ferment under the conditions of high temperature and constant temperature, which will produce some harmful substances to the human body. When tea leaves are soaked in high-temperature water for a long time, a large amount of tea polyphenols, tannins and other substances will be leached, the aromatic oil in the tea will quickly volatilize, and nutrients such as vitamins will also be destroyed, which not only reduces the nutritional value of the tea, but also reduces the tea The fragrance will also make the tea brewed in a strong color and astringent taste.
Some parents are accustomed to putting hot milk in a vacuum flask for children to drink at any time, but they don’t know that the microorganisms in the milk will multiply rapidly at a suitable temperature, leading to corruption, and easily causing diarrhea and abdominal pain. Milk in high temperature environment, vitamins and other nutrients will be destroyed. The acidic substances in the milk will also chemically react with the inner wall of the vacuum flask, causing heavy metals to dissolve out, causing harm to the human body.
The decocted Chinese medicine dissolves a large amount of acidic substances, which easily react with the chemical substances contained in the inner wall of the thermos, and dissolve into the decoction, which will have adverse effects on the human body.
Use a thermos cup to store carbonated beverages. Over time, some substances in carbonated beverages will corrode the inner wall of the thermos cup, reduce the service life of the thermos cup, and the beverage will also deteriorate and taste