At the same time, high water temperature will also make the aromatic oil in tea quickly volatilize, reducing the clear fragrance of tea. In addition, when the water temperature exceeds 80℃, nutrients such as vitamin C will be destroyed, and the health care value will be greatly reduced. Therefore, it is not advisable to make tea in a thermos cup.
The harm of making tea in a thermos cup;
1, induced disease
Tea leaves should be brewed with boiling water at 70-80℃, but many people like to make tea in a thermos cup for convenience, so that they can carry it with them and have hot tea to drink at any time.
Doing so will not only destroy the nutrients in tea, but also leach out a lot of tannic acid and theophylline, increasing harmful substances. Long-term drinking will be harmful to health, leading to digestive, cardiovascular, neurological and hematopoietic diseases.
2. Affect the taste of tea.
The temperature of the thermos cup is relatively high. If the tea leaves are soaked at this temperature for a long time, the nutrients of the tea leaves will disappear, and the tea polyphenols, tannins and other substances contained in the tea leaves will be leached in large quantities, making the tea leaves rich in color and bitter, so it is not suitable to make tea in a thermos cup.
3. Reduce the health care function of tea.
Drinking tea can refresh you, and tea itself has many beneficial effects on the human body. If the tea leaves are soaked in high temperature for a long time, the aromatic oil in the tea leaves will evaporate rapidly, reducing the fragrance of the tea leaves, and the vitamin C contained in the tea leaves will also be destroyed, thus losing the health care function of the tea leaves.
4. It is easy to produce tea dirt and difficult to clean.
Tea leaves soaked in the cup for a long time will accumulate a layer of dirty tea dirt. After a period of time, a layer of dirty tea dirt will accumulate, which is not easy to clean. The tea originally brewed in a high-temperature cup is odorless. If you accumulate a layer of tea dirt for a long time, it will not only be unsanitary, but also shorten the life of the thermos cup.
Extended data
Precautions for the use of thermos cups:
1. Don't make tea in a thermos.
2. Please tighten the lid after drinking to ensure hygiene.
Don't fill the water too full, so as not to burn when tightening the lid.
4. Before use, please preheat it with boiling water for 5- 10 minutes, and the heat preservation effect is better.
5. When cleaning, use a soft cloth and an edible cleaner diluted with warm water.
6. Before the new product is used, it must be scalded with boiling water or detergent several times for high-temperature disinfection. The effect of killing bacteria is achieved.
7. The inside of the stainless steel cup sometimes produces some red rust spots, which can be soaked in warm water with diluted vinegar for 30 minutes, and then thoroughly cleaned.
8, in order to prevent odor or stains, can be used for a long time. After use, please clean it and make it fully dry.
People's Network-Commonly used thermos cups are harmful to making tea. What cup is good for making tea?
People's Daily Online-8 points for attention when making tea in a thermos cup.