we often hear “drink more hot water”, but no one seems to have said how much water to drink. Warm water, honey water, tea, bubble milk powder these things about water, we must grasp the degree!
35 ℃ warm water
make the intestinal tract more comfortable.
drink a cup of warm water in the morning, which can help reduce the burden of gastrointestinal tract. Besides, warm boiling water can help relieve constipation, reduce incidence rate of cerebral thrombosis and myocardial infarction, and help to absorb nutrition in breakfast. Therefore, after getting up in the morning, you must remember to drink 1 ~ 2 cups (200 ~ 400 ml) of warm water.
Dr. Lu Shijun of the food and Nutrition Development Institute of the Ministry of Agriculture said that it is not recommended to drink too hot or too cold water for the maintenance of intestines and stomach. If too hot liquid enters the esophagus, it will damage the esophageal mucosa, stimulate mucosal proliferation and induce esophageal cancer. The ingestion of cold drinks will make the gastrointestinal mucosa suddenly cold and make the original open capillary constrict, so that smooth muscle spasm, can cause gastrointestinal discomfort or colic or even diarrhea.
warm water can promote blood circulation and prevent cardiovascular diseases. It is better for ordinary people to drink water at 35 ℃ ~ 40 ℃. Salt water should not be added (salt boiling water will aggravate hypertonic dehydration, making people doubly thirsty. In addition, the morning is the first peak of blood pressure rise, drinking salt water will make blood pressure higher).
45 ℃ water
dissolved the best milk powder.
from the sensory point of view, using water temperature of about 45 ℃ to brew infant milk powder has the purest flavor, the best solubility, and the milk solution is even without wall hanging phenomenon. Experiments on
have shown that if the water temperature is too cold (for example, 25 ℃), milk powder will have insoluble white particles (that is, commonly known as brewing does not open). If the water temperature is too hot (70 ℃), there will be a small amount of large white particles in the milk, and there will be a small amount of milk powder lumps. A large number of large white particles and milk powder lumps appeared in the milk powder brewed with water (90 ℃).
showed that milk powder could not be completely dissolved at low temperature, while protein in milk powder was denatured at high temperature, forming insoluble particles and agglomerates. The experiment proved that the solubility of milk powder prepared at 45 ℃ was the best.
55 ℃ water
soak honey to retain nutrients
according to Dr. Lu Shijun, honey contains a variety of biological enzymes, among which enzyme activity is an important indicator of honey biological activity, and also an indicator to judge the quality of honey. According to the national standards of
, the amylase value of qualified honey products should be no less than 8ml (1% starch solution) / (g · h). Some experiments show that if the water temperature of honey is higher than 60 ℃, the enzyme denaturation and inactivation will be faster. Therefore, it is recommended that the honey be brewed with warm water below 55 ℃. This can not only melt honey well, but also keep the nutrition of honey as much as possible.
tea with 85 ℃ water
is mellow and nutritious. The
tea polyphenols are one of the important bioactive components of green tea. The best dissolution temperature of tea polyphenols is about 80 ℃. Caffeine in green tea is the main source of astringency of tea soup, and the best dissolution temperature of caffeine is about 88 ℃. Therefore, choosing 85 ℃ to brew can dissolve tea polyphenols as much as possible, and reduce the dissolution of caffeine, so as to ensure the tea soup bright green color and fresh taste. 85 ℃ tea can ensure the rapid expansion of tea and the release of fragrance. The above content of
is only authorized by 39 Health. Please do not reprint it without the authorization of the copyright owner.