Teabags are a type of tea that we often drink in our daily lives, especially for office workers. For teabags, people generally have such questions. Can teabags expire after drinking? Is there any harm to the body? Today, Xiaobian takes everyone to understand the notes of teabags:
Brewing tea, black tea and green tea with boiling water, after 3 minutes, the first time can dissolve about 55% of the total amount of soluble matter. The second brewing is about 30%. The third brewing is about 10%. The fourth brewing is only 1% - 3%. From the case where the vitamins and amino acids contained in tea are dissolved, 80% of them are leached at the first brewing; the leaching rate is more than 95% at the second brewing; the other active ingredients in the tea, such as tea Phenol, caffeine, etc. are also mostly the same.
A cup of tea, not only the fragrance of the nose, drink a product, the fragrance is more than sweet. It is also easy to relax and multiply. People drink black tea, green tea and flower tea, and usually discard the tea residue after brewing once. Since the tea leaves are cut and cut at the time of processing, the leaf cells are sufficiently destroyed to form a granular or finely shaped sheet, and the effective contents in the tea leaves are easily leached when brewed.
Judging from the actual situation of the aroma and taste of tea brewing, the tea is fragrant and refreshing. Although the tea is thick, the taste is not as good as before. The aroma and taste of the tea has been lacking. Can the teabag expire after drinking? If it is brewed, it will have no taste. It seems to drink boiled water. Other scholars have pointed out that after repeated brewing of tea, some hard-to-dissolve harmful substances such as some traces of residual pesticides will gradually be leached. The precaution for drinking tea bags is to put 3 grams of flower tea or black tea or green tea in each cup of tea. Generally, it is better to brew 2-3 times, and it is not suitable for brewing many times.
Can the teabag expire after drinking? Drinking out of tea is harmful to the body. It is best not to drink expired tea. I hope the above summary can be helpful to everyone.
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