Oolong tea is a semi-fermented tea, which can help digestion. It is recommended to drink oolong tea one hour after meals.
Cooked Pu 'er is a completely fermented tea with low content of tea polyphenols, which will not affect sleep, but also can harmonize the stomach, tonify the kidney and soothe the nerves.
The first kind of tea is washing tea, which is the first kind of tea for making tea. It contains some dust and impurities and is not suitable for drinking.
Precautions for tea washing:
(1) The amount of water should not be too much, and it is better to just have no dry tea.
(2) The time should not be too long, no more than 3 seconds.
(3) generally use hot water below 80℃ to wash tea, oolong tea or black tea can be boiled water.
If the brewing time is too long, the tea polyphenols and lipids in tea will automatically oxidize, which will not only make the tea soup darker in color, worse in taste, less fragrant, but also lose its taste value; Vitamin C and amino acids in tea are reduced due to oxidation, and will also lose their nutritional value.
The ancients said that "light tea and warm drink are the most nourishing." Drinking strong tea for a long time, that is, tea with a large amount of tea, too long brewing time and bitter taste, not only makes people overexcited, leads to insomnia, increases the burden on the heart and kidneys, but also stimulates the gastric mucosa, inhibits the absorption of calcium by the human body and increases the risk of illness.
According to the World Health Organization, tea is the best drink for middle-aged and elderly people. Tea is rich in vitamins, protein and fat. Regular drinking can regulate physiological function and has good health care function.
Chinese medicine believes that tea can clear the head, eliminate stagnation, and promote diuresis to relieve stranguria. Modern pharmacological research shows that tea is rich in many medicinal components, such as tea polyphenols, tea polysaccharides, alkaloids, vitamins and so on. It has a certain health care effect on human body.