Re: which kind of tea is most beneficial to the health of the body?

But it is important to be vigilant that the "tea" label does not guarantee that it contains bioactive substances or health benefits. Pre packaged ice black tea and instant tea may contain limited bioactive substances and high sugar levels, and there is no actual tea ingredient in vanilla tea and fruit tea. The characteristics of this will vary greatly. Drinking too much tea may be harmful. It can lead to excessive intake of caffeine. If you drink tea or drink tea soon after dinner, a polyphenol compound, called tannin, will combine the iron ions in the body to reduce the body's absorption of iron.

tea science

the maximum health benefits from tea are more related to tea, but not with the selection of tea; patience is very important, for example, the tea bag is gently swinging in the water for 15-30 seconds. We may only get some bioactive substances from tea leaves. The tea is soaked for 2-3 minutes with hot boiling water, and the tea extracts (60% catechol, 75% caffeine and 80% L- theanine) can be obtained by operating methods. The longer the tea leaves are, the more bioactive substances obtained by the body, and the thicker the taste.

researchers have found that the highest level of bioactive substances can be obtained from tea in 20-30 minutes at 80 degrees, but it is not practical in real life, and it is likely to taste unaccustomed. More interesting is that pH can also affect the extraction process of tea active substances. Compared with the high pH water, the lower pH water often bubbles up a higher level of bioactive substances, and the pH of the tap water is close to 7 (partial neutral), and the addition of lemon in the tea may make the active substances in the tea better be soaked. Come out.