Make tea with cold water for insomnia
Since ancient times, people have been accustomed to transforming tea with hot water. It is believed that hot water can foam the taste of tea and catechins, minerals, and other beneficial substances to the human body.
In fact, the effect of cold water tea is not bad at all. As long as you have enough patience, the fragrance of tea and nutrients will slowly leak out.
As a song from Xiangxi folk sings: “Cold water tea slowly grows .” The so-called cold water tea is brewing tea with cool white water or mineral water.
Office workers, car drivers, mountain climbers, etc., no matter where they go, as long as they can buy mineral water, they can enjoy delicious and healthy “cold tea” anytime, anywhere.
On weekend nights, the reporter tried to make tea with cold water once and compared it with hot tea.
The reporter took out two identical glasses, added 3 grams of Xinyang Maojian, and then mixed in 150 ml of water, but one cup was filled with freshly boiled hot water, and the other cup was filled with room temperature mineral water.
The cup of tea just poured into the hot water immediately overflowed with the scent of the tea, with a bitter taste.
And the cup of tea poured into the mineral water can only smell a touch of tea when you get close to the glass, and you feel that it just has a little more tea flavor than mineral water.
After standing for an hour, drink a few more sips. The tea taste is relatively strong and bitter, but the tea brewed with hot water has a delicate fragrance but not strong. After a few minutes, there is still tea in the mouth.
Later, when I refilled the cup with mineral water, the tea tasted lighter, but the cup of “cold tea” still tasted delicious.
What made the reporter even more surprised was that after a few cups of “cold tea” fell down, the reporter did not sleep hard at midnight when he drank green tea at night, but went to sleep.
How is this going?
The next day, the reporter consulted the information and consulted the experts to find that caffeine in tea has a refreshing effect. This is why many people drink tea and have insomnia. One of the great benefits of cold water tea is that it can reduce the extraction of caffeine from tea.Avoid people with insomnia.
Some people have conducted experiments to brew tea with water at different temperatures. The amount of caffeine leaching in tea drops with the drop in water temperature.
Among them, the amount of caffeine leaching in brewing tea with water at 100 ° C is about 1 in brewing tea with water at 4 ° C.
It can be seen that people who have the desire to drink tea but have concerns about the irritation of caffeine may wish to drink “cold tea”. In addition to preventing insomnia, it can also prevent excessive coffee from causing rapid heartbeat and calcium loss.
Although the amount of caffeine leaching is less when making cold water tea, does this mean that the leaching amount such as catechins will also decrease for the human body?
the answer is negative.
Cold water tea is slowly strong, as long as you have enough patience, drinking “cold tea” can also drink good nutrition.
Studies have shown that after 2 hours of cold water tea leaching, the residual acid, free catechins and other similar components in tea will extract more than hot water tea, and after 8 hours of cold water tea, the insoluble ester typeThe leaching amount of catechin and other ingredients can also reach about 70% of the tea brewed in hot water.
In addition, research has found that tea contains a polysaccharide that not only promotes islets but also removes excess sugar from the blood.
However, this kind of polysaccharide is afraid of heat. If you make tea with hot water, it will be severely damaged, and cold water tea avoids this problem.
From this point of view, drinking “cold tea” helps people control blood sugar.
Although cold water tea has many benefits, not every tea is suitable for “cold tea”.
Experts point out that the longer the fermentation time, the higher the phosphorus content in the tea, and the cold brewed tea should try to choose a low-fermentation tea instead of the phosphorus content.
In terms of the most common tea products, green tea is more highly fermented, followed by oolong tea, and the more fermented are black tea, Tieguanyin, and Pu’er tea.
How to make tea with cold water?
The details are as follows: Prepare tea, cold water, mineral water bottles, etc.
Use cold boiling water to brew tea. The ratio of cold boiling water to tea is about 50 ml to 1 gram, which can be increased or decreased according to personal taste.
After brewing for 1-3 hours, you can pour out the tea and mix it, the tea flavor is delicious.
Unfinished tea can be poured into a mineral water bottle, tighten the lid, and put it in the refrigerator to refrigerate, not more than 24 hours.
After taking out the cold tea from the refrigerator, try to drink it within two hours.