It's entirely possible.

Cold tea making, that is, making tea with cold water, can be said to be a way to subvert the tradition. Brew green tea, oolong tea, black tea, etc. Cold water can be put in the refrigerator for cold drinks or at room temperature.

Herbal tea has many benefits, is nutritious and healthy, and does not affect sleep. Experts found that making tea with cold water can not only release more catechins, but also reduce the caffeine content.

Not every kind of tea is suitable for herbal tea. Generally speaking, the longer the fermentation time, the higher the phosphorus content in tea. Herbal tea should try to choose low-phosphorus fermented tea. As far as the most common tea products are concerned, the fermentation degree of green tea is low, followed by oolong tea, and the fermentation degree of black tea, Tieguanyin tea and Pu 'er tea is high.

Benefits of making tea with cold water:

1, convenient

Traveling, climbing mountains, taking trains or places where hot water can't be boiled can make tea as long as there is pure water or mineral water. Cool and delicious herbal tea can not only quench thirst and relieve summer heat, but also can be brewed as long as there is mineral water or boiled cold water, without reheating, so making herbal tea can save a lot of energy such as electricity or gas. And the taste is purer and fresher than ordinary tea drinks.

In addition, in large and medium-sized business meetings, a bag of instant tea is placed next to mineral water. Easy-to-soak herbal tea can not only refresh the mind, but also clear away heat and relieve summer heat.

2, lowering blood sugar

Tea polyphenols are the general name of polyphenols rich in tea, which have been proved to have the effects of lowering blood sugar, lowering blood lipid, preventing hypertension, cerebral thrombosis, arteriosclerosis and cancer. Tea pigment is an oxidized polymer of tea polyphenols, which can also prevent and treat diabetes to some extent like tea polyphenols. In addition, tea pigment also has the function of lowering cholesterol, and also has a certain preventive and therapeutic effect on diabetic complications, such as cardiovascular and cerebrovascular diseases and arteriosclerosis.

However, when hot water is brewed, the polysaccharide with hypoglycemic effect in tea will be seriously destroyed, and theophylline and caffeine in tea can be easily soaked in hot water, which is not helpful for hypoglycemic. However, it takes a long time to make tea with cold boiled water, so that the polysaccharide components in tea can be fully leached, and then it has a good auxiliary treatment effect on patients with type 2 diabetes.