Is it okay to brew tea in a thermos cup?

Thermos cups are commonly used tea utensils for drinking water, and it is okay to use thermos cups to make tea, but from a scientific point of view, thermos cups are not suitable for making tea because it will affect the taste of the tea and reduce the health benefits of tea.

1. Affect the taste of tea

The temperature of a thermos cup is relatively high. If the tea is soaked at this temperature for a long time, the nutrients in the tea itself will disappear, and the tea polyphenols, tannins and other substances contained in the tea will be leached out in large quantities, making the tea dark in color and bitter. Therefore, it is not suitable to use a thermos cup to make tea.

2. Reduce the health function of tea

Drinking tea can refresh the mind, and tea itself has many beneficial effects on the human body. If tea is soaked in high temperature for a long time, the aromatic oil in the tea will evaporate quickly, reducing the fragrance of the tea, and the vitamin C contained in the tea will also be destroyed, thus losing the health-care function of tea.

3. Tea scale is easy to form and difficult to clean

If tea is brewed in a cup for a long time, a layer of dirty tea scale will accumulate. If you often use a thermos to brew tea for a period of time, a layer of dirty tea scale will accumulate, and it is not easy to clean. Originally, brewing tea in a high-temperature cup will lose its fragrance. If layers of tea scale accumulate for a long time, it will not only be unhygienic, but will also shorten the life of the thermos.