How to make a strain of black tea fungus?

Black tea fungus is brewed from black tea (or green tea, oolong tea, Kuding tea, etc.). ), white sugar (or rock sugar, honey) and water. The cultivation method is as follows:

(1) Preparation of culture solution: a. Weighing tea, clear water and white sugar in proportion; B, the tea leaves are wrapped with white gauze; C, putting the water into a aluminum pot or boiling a steel pot for sterilization; D, putting the tea bag into boiling water for 2-3 minutes and then taking it out; E, adding white sugar to dissolve; F, cooling the tea from the fire to below 35 degrees.

(2) Inoculation culture: culture in a sterilized large-mouthed glass bottle or porcelain jar, add a proper amount of mother liquid to wash the inner wall, then add the prepared mother liquid and membrane into the culture bottle, add the cool culture liquid into the culture bottle, and seal it with gauze to prevent insects and dust.

When the culture bottle is placed in a place without direct sunlight, it will ferment quickly at high temperature and slowly at low temperature. Generally, it will ferment at 30-35 degrees for one week, and a milky fresh film will be formed on the surface of the bacteria liquid. The culture liquid will ferment into sweet and sour black tea bacteria liquid, which can be drunk. Don't finish drinking the black tea fungus liquid, you can continue to cultivate the beverage liquid as above, and the cycle is endless. The ratio of raw materials for cultivating black tea fungus is black tea: sugar: water = 0.2: 5: 200.

Matters needing attention in cultivation of black tea fungus:

First, do a good job of disinfection. The most important thing is disinfection. The container for cultivating black tea fungus must be disinfected. Methods 1, boiling water 10 min; Method two. Rinse twice with mother bacteria solution. (If black, green or red bacteria are found on the surface of the culture solution during the culture process, other flora must be abandoned. )

Second, the selection of strains. Select fresh bacterial liquid and bacterial membrane. Bacteria are living organisms of lactic acid bacteria, acetic acid bacteria and yeast. These bacteria are microorganisms and can only be seen under a microscope. They mainly exist in bacterial liquid. This film is mainly the legacy of Acetobacter. The film can not be used as a separate strain to inoculate and cultivate black tea fungus, and the strain can not be judged by its size.

Make more bacterial liquid at a time. Use jars, glass bottles, etc. Never use plastic or iron products for culture. Can maintain many original excellent qualities of black tea fungus.

Third, the choice of raw materials. It is best to use some untreated natural green tea, black tea and other tea leaves; Choose white sugar as sugar, use less honey, honey is impure and contains many impurities; It is forbidden to use clean well water, spring water and tap water with disinfectant.

Fourth, the amount of sugar, tea and water. The important ratio of sugar, tea and water is 5: 0. 1-0.4: 100 (5 to 0.1 to 0.4 to 100). Put less culture solution for the first time and double it for the second time if you have experience.

Five, let stand, ventilation, avoid direct sunlight. Ventilation is necessary to prevent other miscellaneous bacteria from surviving. Ventilation is very important, because ventilation can effectively reduce the concentration of other miscellaneous bacteria in the incubator, so that other bacteria can not be parasitic.

Six, when buying strains, you should choose healthy and fresh bacterial liquid. The more the quantity, the more the enemy can resist the infection of natural bacteria, so the success rate will be higher.

Black tea fungus, also known as "Haibao" and "Weibao", is a substance that is beneficial to human body after being fermented with sugar, tea and water. Its acidity inhibits the growth of harmful bacteria, which is very beneficial to human health, especially for atrophic gastritis and gastric ulcer, and also has the functions of regulating blood pressure, improving sleep and preventing and treating various diseases.

The membrane of black tea fungus resembles the skin of jellyfish, so it is called "Haibao"; Kombucha is a biofilm. According to analysis, its thallus is an organism of yeast, lactic acid bacteria and acetic acid bacteria.

Because black tea fungus can help digestion and treat a variety of stomach diseases, it is called "Wei Bao" in some places; Also known as "black tea fungus", because it is made of black tea water and white sugar and contains yeast, acetic acid bacteria and lactic acid bacteria. Black tea fungus is rich in vitamin C, vitamin B and other nutrients, and contains three kinds of microorganisms (such as yeast) that are beneficial to human body. Therefore, it can regulate the physiological function of human body, promote metabolism, help digestion, prevent arteriosclerosis, resist cancer, preserve health and strengthen the body, and become a health drink popular all over the world.

Kombucha has been widely used in China 150 years. In recent years, the practice of applying black tea fungus in medical circles at home and abroad shows that black tea fungus can treat many chronic diseases, such as hypertension, arteriosclerosis, coronary heart disease, diabetes, constipation, hemorrhoids, obesity, alopecia areata, white hair, cataract, rheumatoid arthritis, gastritis, dysentery, anemia, riboflavin deficiency and so on.

In recent years, the application and research of black tea fungus in Japan, Europe and America have reached a new climax. In fact, it originated in the Bohai Sea area of China, and was later brought to the Soviet Union for cultivation and application in the Caucasus. Until 1953, a Russian female teacher was brought back from Japan for training. And then spread from Japan to all parts of the world.

Refer to the above content: Baidu Encyclopedia-Agrocybe aegerita