Tea is rich in nutrition. Ethnic minorities drink oil tea and milk tea, mostly meat. It is not difficult to see that drinking tea plays a very good role in meat digestion and promoting metabolism. According to the determination, the organic substances in tea mainly include amino acids, tea polyphenols, catechins, theaflavins, tea polysaccharides, pigments, aroma components, vitamins and saponins.
Tea also contains phosphorus, potassium, sulfur, magnesium, manganese, fluorine, chromium, calcium, sodium, iron, copper, zinc, selenium and other minerals, but the dissolution rate is limited. Tea also contains caffeine, theophylline and volatile oil. Through experiments, the effect of drinking green tea regularly is better than that of lipid-lowering drugs, and it can reduce the incidence of cardiovascular and cerebrovascular diseases.
Tea polyphenols and catechu waste in tea have the functions of reducing blood lipid, antioxidation, preventing cell mutation and anticancer. The Institute of Food Hygiene of Chinese Academy of Preventive Medicine found that green tea, oolong tea and black tea have very strong preventive effects on oral cancer, lung cancer, esophageal cancer, liver cancer and colon cancer. Green tea has five times as many anticancer components as other teas. It is suggested that ordinary people drink three or four cups of green tea (about 10g) every day to enhance the anti-cancer effect. People with a family history of cancer and middle-aged and elderly people can take green tea as the first healthy drink besides boiled water.
Drink different teas in different seasons all year round, and drink tea in different seasons. Because of different varieties and producing areas, tea has different properties such as cold, warm, sweet and pungent, and has different effects on human body.
In spring, spring returns to the earth. At this time, the human body, like nature, is in a relaxed state and should drink scented tea. Scented tea is warm, which can dissipate the cold accumulated by the human body in the long winter and promote the hair growth of the human body. Scented tea is fragrant but not floating, cool but not turbid, refreshing. Jasmine tea and stomach can relieve abdominal pain, osmanthus tea can diminish inflammation and resolve phlegm, honeysuckle tea can clear heat and detoxify, diuretic and nourish liver, and roses and black tea can nourish skin.
In summer, the summer sun is like fire, often sweating profusely, and the consumption of body fluid is large. It is more appropriate to drink green tea such as Longjing, Mao Feng and Biman. Green tea has the effects of clearing away heat, relieving summer heat, detoxifying, promoting fluid production to quench thirst, and strengthening the heart and refreshing. Green tea is sweet, slightly bitter and slightly cold, which can relieve summer heat and increase nutrition. It is reported that drinking green tea in summer is like applying sunscreen, and catechins in green tea have strong antioxidant function, sunscreen and anticancer effects.
In autumn, the air is fresh and the weather is dry, and people often feel thirsty. It is best to drink oolong tea, Tieguanyin and other green tea. Green tea is moderate, between black tea and green tea, neither too hot nor too cold, suitable for autumn climate. Green tea soup is golden in color, green in color, rich in substances and sweet in taste.
In winter, the weather is cold, the physiological function of human body declines, and the requirements for energy and nutrition are high. It is inevitable to eat high-calorie and high-nutrient food to resist the cold. Black tea Black tea has the effects of nourishing stomach, warming stomach, waking up and helping digestion. Drinking some black tea such as Qi Hong, Dianhong, Pu 'er and Liubao tea in winter can get rid of greasy food, stimulate appetite and help to keep fit. Black tea Black tea is sweet in taste and warm in nature, which can nourish the body, hide yang, generate heat and warm the abdomen, and enhance the body's ability to resist cold. Adding lemon juice to black tea can improve the antioxidant effect of tea by about 80%. Black tea with ginseng, medlar or longan pulp 1-3 tablets has a good nourishing effect.
Drinking tea should suit your constitution. People with cold stomach drink less green tea and herbal tea, and drink more black tea and black tea with warm stomach. Obese people and young adults should drink green tea, while thin people and the elderly should drink black tea and scented tea. Generally, drinking green tea during the day can refresh you; It is advisable to drink black tea and Pu 'er in the evening, which not only nourishes the stomach but also does not affect sleep. No matter what kind of tea, it is not appropriate to drink too much or hard.
The method of making tea in hot water is to make tea 10 second as a slippery clean. Black tea, green tea and scented tea should be brewed three times. Oolong tea leaves are coarse and old, and can be brewed for 5 times. The bag/tea bag is suitable for one-time brewing.
To make tea correctly, the boiling water should be slightly cold, and it should be brewed at about 90℃ for 5 minutes, which not only has a good taste, but also can effectively separate out components. When drinking tea, don't drink it all at once, leave 1/3 tea liquid as the bottom, so as to maintain a certain concentration when replenishing water. Oolong tea, Pu 'er tea, Tuo tea and coarse old tea should be brewed with boiling water. The tender and greener the tea leaves, the water temperature can be as low as 80℃. It is ideal to have a cup of tea every morning and afternoon, which is both fresh and fragrant.
The most suitable tea temperature for drinking tea is around 40 _ C. Li Shizhen thinks: "Tea is bitter and cold, and yin is yin in yin." If you bring cold clothes again, it will be even worse. Therefore, we should drink warm tea, use the heat of water to offset the coolness of tea, and maintain the functions of digestion, eyesight, diuresis and detoxification. Traditional Chinese medicine is called "eliminating sex and saving use" Drinking herbal tea for a long time is easy to cause cough and phlegm, and it is also necessary to avoid drinking too hot tea.