Avoid drinking tea on an empty stomach. Drinking tea on an empty stomach will cool the spleen and stomach. There has been a saying in China since ancient times that "you don't drink hollow tea".
Second, avoid drinking hot tea. Too hot tea irritates throat, esophagus and stomach. If you drink too hot tea for a long time, it may cause pathological changes in these organs. According to foreign research, people who often drink tea above 62 degrees are more likely to damage the stomach wall and suffer from stomach diseases. The temperature of drinking tea should be below 56 degrees.
Three bogey drinking Leng Cha. Warm tea and hot tea can make people feel refreshed and clear-headed; Herbal tea has the side effect of cold coagulation and phlegm accumulation.
Four bogey strong tea. Strong tea contains caffeine and theophylline, which is irritating and easy to cause headache and insomnia.
Five bogey brewing time is too long. Tea polyphenols, lipids and aromatic substances in tea can be automatically oxidized and lose their taste value; Vitamin c, vitamin p and amino acids in tea are reduced due to oxidation, which greatly reduces the nutritional value of tea soup; Tea soup has been put on hold for too long and is polluted by the surrounding environment. There are many microorganisms (bacteria and bacteria) in tea soup, which is very unsanitary.
Six avoid too many brewing times. According to relevant tests, the water content of the first tea soup is 50%, the second tea soup is 30%, the third tea soup is 10%, and the fourth tea soup is only 1-3%. Repeated brewing will also leach out some harmful components in tea, because trace harmful elements in tea are often soaked at the end.
Seven avoid drinking tea before meals. It will dilute saliva, make the diet tasteless, and temporarily reduce the function of digestive organs to absorb protein.
Eight taboos drink tea immediately after meals. Tea contains tannic acid, which can coagulate with protein and iron in food and affect the digestion and absorption of protein and iron.
Don't drink tea and take medicine. Tea contains a lot of tannins, which can be decomposed into tannins, which combine with many drugs to produce precipitation, which hinders absorption and affects drug efficacy. So as the saying goes, "tea is the antidote."
Ten don't drink overnight tea. Because the overnight tea lasts for a long time, the vitamins have been lost, and the protein and sugar in the tea will become the nourishment for the reproduction of bacteria and molds.
Discuss water by tasting tea.
Mountain spring: Most of them come from mountains with overlapping rocks. The mountain is lush with vegetation, and the mountain spring gathered from the trickle of rock faults is rich in carbon dioxide and various trace elements beneficial to human body; The spring water filtered by sand and gravel is clean and clear, and contains almost no chlorine, iron and other compounds. Using this spring water to make tea can keep the color, fragrance and shape of tea to the maximum extent. But not all mountain springs can be used to make tea, such as sulfur mineral water. On the other hand, mountain spring water is not available everywhere, so for most tea drinkers, they can only choose suitable tea products according to conditions and possibilities.
Rivers, rivers and lakes: surface water, containing more impurities and high turbidity. Generally speaking, it is difficult to achieve good results in making tea. However, they are far away from human beings, with lush vegetation and less pollutants. Such rivers and lakes are still good water for making tea. For example, Fuchun River in Tonglu, Zhejiang, Qiandao Lake in Chun 'an and Jianhu Lake in Shaoxing are all examples. In the Tang Dynasty, Lu Yu said in the Book of Tea: "Its rivers take away those who are far away." That's what I'm saying. Bai Juyi in the Tang Dynasty said in his poem: "Shu water is surprised when it arrives, and Wei water is precious when it is first fried." He thinks Wei Shui fried tea is very good. In the Tang Dynasty, Li Qunyu said, "Wu Ou is fragrant with water and green flowers", and it is not bad to make tea with water. Xu Cishu in the Ming Dynasty further said in Tea Sparse: "The water of the Yellow River falls from the sky. Turbid soil, clear and clean, fragrant and spontaneous. " It is said that even the turbid Yellow River water can make tea soup mellow as long as it is clarified.
Well water: It belongs to groundwater with low suspended solids content and high transparency. However, most of them are shallow groundwater, especially urban well water, which is easily polluted by the surrounding environment and is harmful to the taste of tea. So, if you can draw water from the well of life to make tea, you can also make a good cup of tea. That's what Lu Yu said in the Tea Classic in the Tang Dynasty, and Lu Shusheng said in the Seven Products of Fried Tea in the Ming Dynasty that "there are many people who take wells and many people who take water". Jiao Hong's Yutang Yu Cong in the Ming Dynasty, and Dou Guangnai and Zhu Jun's Wen Kao in the Qing Dynasty all mentioned Dongdong Well in Jinghua Temple, which was once the drinking water source of the imperial palaces in the Ming and Qing Dynasties. Guanyin well in Nan 'an, Fujian, used to be the water of tea fighting in Song Dynasty, and it still exists today.
Tap water: contains chlorine for disinfection, etc. Stay in the water pipe for a long time and contain more iron. When the content of iron ion in water exceeds five ten thousandths, the tea soup will be brown, and chloride will react with polyphenols in tea, forming a layer of "rust oil" on the surface of tea soup, which tastes bitter. Therefore, it is best to use tap water to make tea in a pollution-free container, store it for one day first, then boil it after releasing chlorine gas, or purify the water with a water purifier, so as to become a better water for making tea.
New knowledge of women drinking tea
As we all know, drinking tea has many benefits, but it may not be appropriate to drink tea at will during the "special period" of women.
Menstruation: Menstrual blood contains relatively high hemoglobin, plasma protein and hemoglobin, so women may wish to eat more iron-rich foods during or after menstruation. Tea contains more than 30% tannic acid, which hinders the absorption and utilization of iron molecules by intestinal mucosa. It is easy to combine with iron molecules in food in the intestine, and precipitation can not play a role in enriching blood.
Pregnancy: Tea is rich in caffeine. Drinking tea will accelerate the heart rate of pregnant women, increase the burden on the heart and kidneys, increase urination and induce pregnancy poisoning. It is not conducive to the healthy development of the fetus.
Labor process: During this period, drinking tea will cause palpitation and insomnia due to the effect of caffeine, which will lead to physical decline, and may also lead to mental fatigue during alkali delivery, resulting in dystocia.
Lactation: Tannic acid in tea is absorbed by gastric mucosa, which will have astringent effect after entering blood circulation, thus inhibiting mammary gland secretion and causing milk secretion disorder. In addition, due to the exciting effect of caffeine, the mother lacks sleep, and caffeine in milk enters the baby's body, which will lead to intestinal spasm and crying for no reason.
Menopause: After the age of 45, women begin to enter menopause. Drinking strong tea during this period, in addition to emotional impulses, sometimes there will be fatigue, dizziness, insomnia, palpitations, dysmenorrhea, menstrual disorders and other phenomena, and may also induce other diseases.
It is advisable to gargle with strong tea: since women should not drink tea at special times, it is better to gargle with strong tea water, which has unexpected effects.
Rinsing your mouth with tea during menstruation will make your mouth feel refreshing and comfortable, and your bad breath will disappear, so that you can have a good mood on "inconvenient" days.
Pregnant women are prone to calcium deficiency during pregnancy. At this time, gargling with tea can effectively prevent dental caries, prevent the development of the original diseased teeth and protect your beautiful white teeth.
Rinsing your mouth with tea during labor can stimulate your appetite, increase your energy during the day and improve your sleep quality at night, thus improving your mental state to varying degrees.
Rinsing mouth with tea during lactation can prevent gum bleeding, kill oral bacteria, keep the mouth clean and improve the quality of milk.
During menopause, there will be different degrees of tooth halogen loosening, and many anaerobic bacteria will be produced around the teeth. At present, there is no specific medicine to kill this bacteria, but gargling with tea can prevent periodontitis.
Specific practice: Take 5g of high-quality jasmine tea, brew it with 40ml of water for 30min, and then rinse it three times in the morning, at noon and at night. The water temperature for brewing is 80-90 degrees.
Please drink tea while watching TV.
According to related reports, close contact with TV (especially color TV) screen radiation for a long time is harmful to human health, and drinking tea can reduce the harm of radiation. Lipopolysaccharide in tea has obvious anti-radiation effect on hematopoietic function. Soluble tea can resist radiation and increase white blood cells, and it is also an effective protective article for radiation workers. For example, the total number of white blood cells of radiation workers is generally less than 4000 units. After one month of oral administration of soluble tea, white blood cells generally began to rise. At the same time, it can also improve abnormal white blood cell classification and thrombocytopenia.
It can be seen that drinking several cups of green tea every day can save you from worrying about micro-radiation on TV. In addition, if you watch TV for four or five hours continuously, people's vision will temporarily drop by 30%, especially watching color TV will consume a lot of rhodopsin in the eyes, resulting in decreased vision. Vitamin A is beneficial to the synthesis of rhodopsin, and is effective in restoring and preventing vision loss. Tea contains carotene, which has the physiological function of vitamin A.