Many people have the habit of drinking tea in their daily life. There are many types of tea. Different teas have different effects. Tea is rich in nutrients, such as various vitamins, minerals, and tea polyphenols. These have a very important effect on the human body. Many people usually like to use a thermos cup to brew tea. Everyone knows that the nutrients in tea are the most afraid of high temperatures. If you use a thermos cup to make tea and drink, there are many harms.
When making tea in a thermos, the aromatic substances in the tea will volatilize quickly, and the tea soup will lose its proper aroma. Tannic acid and theophylline are easily exuded in large quantities, reducing their nutritional value. And vitamin C, etc. will be lost in a large amount in the environment of more than 80 ℃, and the health care function of tea will also be reduced accordingly.
In addition, it is not appropriate to make tea with an enamel tea set. The enamel tea set is easy to wear and tear after being used for a long time, the iron sheet is exposed, and the metal components will dissolve in the sea water, which will make the tea water yellow and lose its original flavor. Moreover, the enamel tea set dissipates heat and transfers heat quickly, and the tea fragrance is also easy to emit.
Therefore, to drink a cup of hot tea with health care and a strong tea aroma, it is best to brew it with a purple clay pot or a ceramic tea set. You can brew the tea first, and then pour the tea soup into the thermos cup. On the one hand, it can keep warm for a long time, and on the other hand, it can make up for the lack of nutrient loss.
It should be reminded that the water temperature is also different when brewing different teas. Generally, the water temperature for brewing tea is 70-80 ℃. Maojian, Longjing, Biluochun, etc. like water at 70-80°C; oolong teas such as Tieguanyin and post-fermentation Pu'er prefer water at a high temperature of 90-100°C; for black tea, water at 80-90°C can be used.
How to drink tea scientifically
1. How many times should a cup of tea be brewed? The degree of foam resistance of tea is mainly determined by the method of tea processing, in addition to its tenderness. When the tea leaves are chopped in the initial production process, the tea juice can be easily brewed, while the thick, old and complete tea leaves can be brewed slowly.
2. No matter what kind of tea, in the first brewing, the leaching amount accounts for 50% to 55% of the total soluble matter; the second brewing generally accounts for about 30%; the third brewing is about 10%; the fourth time Only 1% 3%. Judging from its nutritional content (vitamins and amino acids in tea leaves), 80% of the amount is leached out in the first brewing, about 15% in the second brewing, and basically, all leaching out after the third brewing. The aroma and taste of tea, the first tea has a strong aroma and a fresh taste; the second tea is rich, but the taste is not as fresh as before; the third tea has a weak aroma and taste; if it is brewed again, it will have no taste.
3. For general black tea, green tea, and scented tea, it is advisable to brew three times. Oolong tea has a large number of leaves during brewing, and the tea leaves are thick and old, so they can be brewed several times. Teabags processed from broken black tea are usually suitable for one-time brewing. It is not advisable to brew a cup of tea from morning to night. After several times of brewing, tea leaves can gradually leach out some insoluble harmful substances (such as some extremely trace residual pesticides), which are harmful to the human body. The ideal brewing method is to have a cup of tea in the morning and a cup of tea in the afternoon every day, which has both freshness and tea aroma.
4. There are differences in drinking tea in four seasons. Tea drinking pays attention to the four seasons, namely: drinking scented tea in spring, green tea in summer, green tea in autumn, and black tea in winter. The reason is: that in spring when people drink scented tea, it can release the cold evil that has accumulated in the human body in winter, and the strong fragrance can promote the occurrence of yang in the human body. In summer, it is better to drink green tea. Green tea is bitter and cold in nature and can clear away heat, relieve summer heat, detoxify, quench thirst, and strengthen the heart. In autumn, it is better to drink green tea. This tea is neither cold nor hot, it can eliminate the residual heat in the body and restore body fluid. In winter, drinking black tea is ideal. Black tea is sweet and warm, rich in protein, can help digestion, replenish the body, and make the human body strong.
