Pu 'er tea is deeply loved by the people, especially the cooked tea, which has the functions of clearing away heat and toxic materials, relieving summer heat and promoting digestion, and protecting the stomach. But recently, it was circulated on the Internet that one gram of Pu 'er tea contains 500 million molds. Drinking Pu 'er tea is equivalent to drinking dirty water, which makes many tea lovers shudder. Is that really the case?

Many strains are really needed in the pile fermentation of Pu 'er tea, such as Aspergillus Niger, Penicillium, yeast, bacteria and Rhizopus. Although there are so many strains, most of them are beneficial to human body. Taking Aspergillus Niger as an example, when Pu 'er tea is fermented, Aspergillus Niger can produce dozens of hydrolases, which can be decomposed into organic substances, including pectin, polysaccharide, protein, fat, etc., which can enhance the nutritional value of Pu 'er tea and improve the quality and taste of Pu 'er tea.

To put it simply, the reason why Pu 'er tea can emit unique fragrance and have health care function is mainly due to the above strains. In addition, there are very few bacteria produced in the process of pushing Pu 'er tea, and the propagation of mold and yeast can inhibit the growth of bacteria. It can be seen that there are not so many bacteria in Pu 'er tea, which is harmless to the body.

I don't know if you know Fang, a "fake fighter". At first, he pointed out that drinking Pu 'er tea may cause cancer! Because it contains aflatoxin, it caused an uproar. Drinking tea has always been praised as a way to keep fit, but now it is pointed out that it will cause cancer. Is it true?/You don't say.

However, this statement is untenable. In 20 17, eight kinds of Pu 'er tea commonly used in the market were randomly selected by Consumer Reports magazine, and their storage time ranged from several months to four years, and no aflatoxin was found. Although Aspergillus flavus is very common in nature, it will not be produced in the process of making Pu 'er tea.

Adding Aspergillus Niger to Pu 'er tea can inhibit the growth of Aspergillus flavus and degrade the biological enzyme activity of toxin. Tea contains caffeine and tannin, which can also inhibit the growth of toxins. As long as you buy Pu 'er tea produced by regular manufacturers in regular channels, there will be no aflatoxin and no cancer, so you can drink it boldly.

1, can't you have overnight tea?

Some people think that making tea for 12 hour will increase the risk of cancer, because nitrosamines, a carcinogen, will be produced in this process. But there is no data to prove the truth of this theory. The experiment proved that the nitrite content in tea was 0. 1 3ug/ml and 0.25ug/ml after 60 hours per day, which was far below the concentration limit.

2. Can you not drink strong tea?

Drinking tea after drinking is undoubtedly three sins. First of all, after alcohol enters the gastrointestinal tract, it will stimulate the gastric mucosa and cause ulcers. Strong tea contains a lot of caffeine, which also stimulates gastric acid secretion and aggravates gastric ulcer.

Alcohol metabolism needs to be transformed by the liver, decomposed into carbon dioxide and water, and excreted by the kidney. Theophylline can induce diuresis, which will cause undecomposed acetaldehyde to enter the kidney in advance, causing damage to the kidney.

We all know that alcohol can stimulate our cardiovascular system and act on the nervous system at the same time, leading to accelerated blood circulation, vasodilation and rapid heartbeat. Strong tea also has the same effect. Drinking tea after drinking will increase the burden on the heart.

3. drinking tea after meals helps digestion?

Elders always like to make a pot of tea after dinner. In fact, doing so will cause indigestion. Tannic acid contained in tea will reduce the secretion of gastrointestinal fluid after entering the gastrointestinal tract, thus causing indigestion in the body. At the same time, it will also produce protein tannic acid, which is not easy to digest and will slow down intestinal peristalsis, thus causing constipation.

Drink light tea: Tea will contain tannic acid and theophylline, which will increase with the increase of tea concentration. A large amount of intake will stimulate the stomach and cause stomach pain. Therefore, drinking light tea can reduce the irritation to the stomach and be beneficial to health.

Tea drinking time: drinking tea after meals can avoid the stimulation of drinking tea on an empty stomach to the gastrointestinal tract, thus avoiding the phenomenon of drinking tea. Half an hour after a meal, making a cup of mild tea is a kind of enjoyment.

Tea drinking temperature: The International Agency for Research on Cancer classifies hot drinks above 65 degrees as Class 2A carcinogens, so the temperature of drinking tea should not exceed 65 degrees as much as possible.

The heap fermentation of Pu 'er tea needs the participation of strains, but the process will not produce bacteria harmful to human body, so everyone can drink tea with peace of mind. As for the theory that drinking tea can cause cancer, it is also nonsense. Since ancient times, drinking tea has been a kind of culture in China. Drinking tea can be beneficial to the body and mind, is of great benefit to the body, and can enhance physical fitness. I hope every reader can benefit from drinking tea.

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