Green tea, one of the main tea leaves in China, refers to a beverage made from new leaves or buds of tea tr
Green tea, one of the main tea leaves in China, refers to a beverage made from new leaves or buds of tea trees without fermentation, after deactivation, shaping and drying. The color of the finished product and the brewed tea soup retain the green style of new tea. Drinking green tea regularly can prevent cancer, reduce fat and lose weight, and also reduce the harm of nicotine to smokers.
Green tea is a kind of tea made from suitable new shoots of tea trees through typical technological processes such as enzyme fixation, rolling and drying. Without fermentation, green tea retains the natural substances of fresh leaves, and contains many nutrients such as tea polyphenols, catechins, chlorophyll, caffeine, amino acids and vitamins. These natural nutrients in green tea have special effects of anti-aging, anti-cancer, sterilization and anti-inflammation, which are beyond the reach of other teas.
Green tea is called "national drink" in China. A large number of studies in modern science have confirmed that tea does contain biochemical components closely related to human health. Tea not only has the pharmacological effects of refreshing brain, clearing away heat and relieving summer heat, resolving food stagnation, relieving fatigue and losing weight, clearing away heart fire and vexation, relieving hangover, promoting fluid production to quench thirst, reducing fire and improving eyesight, stopping dysentery and removing dampness, but also has certain pharmacological effects on modern diseases such as radiation sickness, cardiovascular and cerebrovascular diseases and cancer. The main components with pharmacological effects in tea are tea polyphenols, caffeine, lipopolysaccharide, theanine and so on. The specific functions are.
Tea polyphenols have strong antioxidant and physiological activity, and are free radical scavengers in human body, which is helpful to delay aging. Studies have proved that 1 mg tea polyphenols is equivalent to 9 micrograms of superoxide dismutase in scavenging excessive free radicals harmful to human body, which is much higher than other similar substances. Tea polyphenols can block lipid peroxidation and remove active enzymes.
In addition, tea polyphenols can block the synthesis of various carcinogens such as ammonium nitrite in the body, which can directly kill cancer cells and improve the immunity of the body. According to relevant data, tea polyphenols in tea are beneficial to the prevention and adjuvant treatment of cancers such as gastric cancer and intestinal cancer.
General green tea brewing methods and matters needing attention:
1, when brewing green tea, the water temperature should be controlled at about 80℃ ~ 90℃.
2. Don't drink the first time you make tea. After pouring hot water, shake it and pour it out.
3, green tea powder can not be soaked too thick, otherwise it will affect the secretion of gastric juice, it is best not to drink on an empty stomach.
Note: If green tea powder is brewed, it can be brewed with warm water at 40℃ ~ 60℃. The serving size is 2g of green tea powder with 450ml of boiled water.