Some people prefer to live in the tea brew repeated until no flavor drink up; Some people are making a twice quickly for tea. Which of these two approaches is correct, how to brew a cup of tea several times better? Today we take a look at:
Some people like to drink weak tea, some people like to drink tea, although the number of tea brewing and different tastes great relationship, but on nutrient absorption, it is best to brew tea bags only once, bulk tea is not more than 3 times.
So the best anti-cancer effect of tea drinking
Tea contains polyphenols have anti-tumor effect, you can drop blood sugar tea polysaccharide, central nervous excitement coffee base, and a variety of amino acids, vitamins and other nutrients. How much of these nutrients can precipitate, and the number of brewing a great relationship. In general, the larger the particle shape of tea, nutrients deposited slower; smaller the particles, the faster the precipitation.
Compared with bulk tea, tea, tea bags in the manufacturing by cutting rubbing fully destroyed the leaf cells, particle shape is relatively small, tea nutrients through the first soak 3-5 minutes, there will be 80 90 percent of the precipitation, the second time after brewing, so the remaining 10% of the nutrients are also almost all precipitated. Therefore, Yin Junfeng suggested the best brew tea bags once, not only no loss in absorption of nutrients, it will not affect the taste and flavor. Since the particles are relatively large bulk tea, preferably the first time longer infusion should be about 5 minutes, wherein the material will be 60% -80% of the nutrient precipitation; after the second infusion, there is 80% - 90% of the nutrient precipitation; after the third infusion, nutrient leaching rate of more than 95%, then brew down, has no effect of nutrition.
As some experts have pointed out, after repeated brewing tea, which makes pesticides, heavy metals and other harmful substances leaching. Although this argument has some truth, but do not worry too much about. China's tea production of pesticides currently used in most of the low solubility in water, drinking 10 grams per person per day basis, even if the brewing of 1 mg / kg of tea residues, pesticide ingestion of only 0.0001 mg, the World Health Organization regulations allow daily intake of a few thousandths. Tea Pb leaching rate is relatively low, as long as the purchase of regular tea factory, its content does not exceed the national standard.