Non tea tea - eucommia tea

Eucommia is mainly produced in Shaanxi, Guizhou and other provinces, and introduced in Zhejiang in recent years It is a perennial tree It usually takes 10 years from driving to peeling eucommia bark When picking the bark, first cut down the tree and then peel it At the base of the tree, new buds are produced, and then it becomes a new tree The main components of eucommia bark and leaves contain the same substances The water extract of leaves accounts for about 40% of the total dry matter, which is equivalent to the total water extract of tea It contains chlorogenic acid, aucubin, diglucoside and vitamin C The fresh leaves of Eucommia ulmoides are green The leaves are kneaded and placed for several hours The color of the leaves changes from green to pig liver, which proves that there are phenols in its water content According to the green tea method, the dry leaves are green; according to the black tea method, the black tea color is formed, which proves that there is polyphenol oxidase in it Therefore, Eucommia leaves can be made into "black tea type" and "green tea type" According to the research of Chinese and foreign medical scientists, Eucommia leaves and leather products have the same health care ingredients According to relevant clinical trials, eucommia tea has the effect of delaying aging, keeping fit and reducing weight, and has certain curative effect on hepatonephropathy, hypertension, arteriosclerosis, lumbago and knee pain, impotence, frequency of urination and other diseases Therefore, it is regarded as a valuable "nourishing" traditional Chinese medicine by Chinese and foreign medical circles According to the investigation of Tea Research Institute of Chinese Academy of Agricultural Sciences, it is better to pick Eucommia leaves from the first ten days of June to the middle ten days of October The leaves are too old, the effective ingredients are reduced, and almost lose the pharmacological effect But picking too early will affect the growth of Eucommia ulmoides The more reasonable picking method is: leave the top leaf, not the bottom old leaf, and pick the middle leaf If you pick Eucommia trees whose leaves are not peeled, you can also carry them like rootless mulberry, so that they will have more lateral branches, longer leaves, and pick tender leaves in batches The fresh leaves of Eucommia ulmoides are bigger and harder than the fresh leaves of tea They are oval, about 15 × 10 cm, with longer stems Except for the young leaves, they are not easy to be made into strips like tea According to the black tea making method, the technology can be divided into: withering: the moisture content of Eucommia leaves is 70-80%, and that of mature leaves is 75% (close to that of tea) Only when the withering degree is light, can more "slice tea" be made; when the withering degree is heavy, more "last tea" can be made In the process of withering and spreading, the heaps of leaves should not be heated to prevent them from rotting Kneading: knead for 20 minutes with the general traditional kneading machine, so that the leaves are broken, but due to the filamentous connection of Eucommia rubber, it is often in a string shape Kneading and cutting: use the rotor machine to cut, the method is the same as the kneading and cutting of broken black tea Fermentation: the fermentation process of Eucommia leaves is very slow, the fermentation time is 68 hours, the color of leaves changes from dark green to pig liver color, the aroma changes from green grass gas to "black tea" fermentation leaf flavor, and the flavor with ripe apple is moderate Drying: similar to tea drying According to the green tea production method, only the wilting and withering process needs to be changed to green, and then the fermentation process can be omitted, in which the rolling, kneading, cutting, drying and "black tea" production method are the same The moisture content of dry Eucommia leaves is about 7% 140 kg of clear water should be added into 100 kg of dry Eucommia leaves to make it reach 60% The leaves of Eucommia ulmoides, which have absorbed water and returned to moisture, need to be piled up to make the color of leaves change from green to dark brown, and the fragrance change from coarse green to pure sum This process is actually the oxidation of phenols and the recombination of aroma components When the stack temperature rises to 48 ` C, it must be turned over in time to cool down, otherwise "ripe old Lingqi" will be produced, which will affect the quality In the process of pile building, the change of pile surface is slow and the change of pile center is fast It is very important to turn the pile to make the leaves uniform After wodui, the color of leaves must be changed from green to brown, and the fragrance must be pure, which is the wodui time for CO migration The process of rolling, cutting, drying and refining is the same as that of "black tea type" Eucommia tea, which is made of Eucommia leaves only, has a green and astringent fragrance, which is difficult for some consumers to accept In order to adjust its taste Adding about 30% jasmine tea or middle and top grade Oolong flower into pure eucommia tea can improve palatability of taste At present, eucommia tea produced in Guizhou and Shaanxi are all blended with jasmine tea at different ratios In this way, the fragrance is more harmonious, and it can be a natural health drink that both tea drinkers and non tea drinkers are willing to drink.