People are accustomed to hot tea, that the water can taste the tea and the catechin, minerals and other beneficial components of the bubble out of the body. In fact, the effect of cold tea and not at all bad, as long as you have enough patience, the fragrance of tea, nutrition will gradually oozed from the inside. Western China, as a song: "The cold water slowly concentrated tea ... ..."
The so-called cold tea is brewed with cool boiled water or mineral water, tea. Office workers, car race, ethnic and other climbers, wherever, as long as you can buy mineral water, you can enjoy a drink any time they care "cold tea."
Weekend evening, the reporter tried a back to tea with cold water and hot bubble tea and do some more. Press out two of the same glass, add 3 grams Xinyangmaojian respectively, then the Duiru 150 ml of water, just a cup of Duiru is just boiling hot water, another cup of mineral water at room temperature Duiru is . Just pour hot water cup of tea, instantly tea lovers, drink, strong bitter taste. The mineral water that poured into the cup of tea, close to the glass to smell the faint fragrance of tea, one you'll feel the sense of promise but have become more than mineral water, tea taste. Place an hour later, drink a few mouthfuls of tea taste is relatively thick, and hard, but compared to hot bubble tea, taste not strong aroma, a few minutes later, the mouth still retained tea. Then refill with mineral water, tea, light taste of some, but this cup of "cold tea" drink up and still taste fragrance. Gengrang's surprise, a few glasses of "cold tea" you'll feel after the night's not usual for a drink of green tea to sleep at night, but well off to sleep.
This is how it? The next day, journalists access to information, consultation of experts was informed that the caffeine in tea has a refreshing effect, which is why many people drink tea because of insomnia, and cold tea is one of the major benefits of tea can reduce the leaching of caffeine, avoid people insomnia.
Some people have done tests with different temperature of water in with the tea, the leaching amount of caffeine in tea with the water temperature to reduce. Of these, 100 ℃ of water with caffeine brewing tea is about the leaching of water at 4 ℃, 1.35 times the tea brewing.
Thus, there is the desire to drink tea but there are concerns about caffeine's stimulating people who might drink "cold tea", in addition to prevention of insomnia, but also to avoid excessive intake of caffeine Erzhi rapid heartbeat, loss of calcium side effects.
Although the cold tea extract caffeine less time, but that mean that catechin and other useful components of the human body will also decrease the leaching amount? The answer is no. Thick cold tea slowly, as long as you have enough patience, drinking "cold tea" also drink out of good nutrition. Studies have shown that cold tea 2 hours after the tannic acid in tea, catechins and other free water-soluble components of the extraction volume will exceed thermal bubble tea, and cold tea and 8 hours after the ester is not soluble in water catechins and other components of the leaching amount of heat blisters can reach about 70% of the tea.
In addition, the study found that tea contains a polysaccharide, which both promote the islet, but also remove excess blood sugar. However, this polysaccharide heat intolerance, if the hot tea, will be seriously damaged, while the cold tea, however, avoided this problem. From this point of view, drinking "cold tea" helps people to control blood sugar.
Although the cold tea has many benefits, not all fit in each bubble tea "cold tea." Experts pointed out that the longer the fermentation time, tea in the phosphorus content is relatively higher, and cold tea should choose the lower phosphorus content, low fermented tea. The most common tea for less fermented green tea, oolong tea the second, the higher degree of fermentation is black tea, Tie Guan Yin, Pu'er tea.
How do tea with cold water? As follows:
1. Prepare tea, cold water, mineral water bottles.
2. Brew tea with cold water, cold water with the tea ratio is about 50 ml to 1 g, adjusted according to personal tastes change.
3. Brew 1 to 3 hours after the tea can be drunk, its flavor glycol delicious.
4. Did not finish the tea can be poured into the mineral water bottle, tighten the lid, and then into the refrigerator, not to exceed 24 hours.
5. Cold tea from the refrigerator and then try to finish within two hours.
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