Symptoms of allergy to black tea

summary

During the processing of black tea, the chemical reaction centered on the enzymatic oxidation of tea polyphenols occurred. The chemical composition of fresh leaves changed greatly, and the tea polyphenols decreased by more than 90%, resulting in the production of new components such as theaflavins and thearubicin. Compared with fresh leaves, aroma compounds increased significantly. Therefore, black tea has the characteristics of black tea, red soup, red leaves and sweet taste. Qimen black tea is the most famous black tea variety in China, which is the second largest tea type in China. The symptom that drinks black tea allergy? Let's talk about it

Symptoms of allergy to black tea

Generally speaking, if you are not allergic to tea ingredients (such as tea polyphenols, tannic acid, tannin, etc.), drinking tea will not cause allergy. Some people who have allergies to some flowers may have allergies when drinking flower tea, especially rose tea and Dai Dai flower tea, which may cause dizziness, nausea, allergic rash and other reactions of people who are allergic to flowers. Therefore, it is necessary to pay attention to or avoid drinking flower tea.

Green tea is a kind of tea that we often drink in our life. It can not only remove the heat, clear the intestines and expel toxins, but also is the first choice of weight loss products. However, green tea is easy to vomit for allergic constitution. Therefore, in addition to tea allergy can not drink tea, flower allergy can not drink tea, allergic constitution can not drink green tea, other skin allergy patients can drink tea.

There are many factors causing allergy. It is not accurate to judge one's allergy to tea by drinking tea. Now many people drink tea with food to eat, if not careful to eat and tea conflict with food will lead to allergies. If you just drink tea that doesn't conform to your constitution, there will be adverse reactions. In addition, if you drink white tea and black tea that have been stored for a long time, you may also have allergies due to deterioration of tea during storage.

matters needing attention

Avoid brewing time too long: brewing time is too long, tea polyphenols, lipids, aromatic substances in tea can be automatically oxidized, not only the dark color of tea, bad taste, low aroma, loss of taste value; And because of the reduction of vitamin C, vitamin P and amino acids in tea due to oxidation, the nutritional value of tea soup is greatly reduced; At the same time, because the tea soup is shelved for a long time and polluted by the surrounding environment, there are a large number of microorganisms (bacteria and straight bacteria) in the tea soup, which is very unsanitary.