Nowadays, in our daily life, drinking tea is a very common thing, leisure, gatherings, business negotiations, visiting relatives and friends and other occasions have the figure of tea tasting. But how to drink tea correctly? I think many people are not very clear!
We often drink tea because of its sweet aroma and its nutrients. But did you know that improper tea drinking can lead to kidney stones? How to open the correct way to drink tea, the following Xiaobian will tell you about it.
First, let's talk about the incorrect way to drink tea
1. After the tea is cold, heat the water and continue to drink
Some people are accustomed to heating water after the tea is cold and continue to drink, and then heating the water halfway, it is not easy to dissolve the nutrients in the tea, and it is not easy to brew the aroma. In addition, repeated brewing or brewing time is too long, tea polyphenols, vitamins, protein oxidative degeneration in tea, harmful microorganisms will also increase.
2. Drink tea on an empty stomach
Drinking tea on an empty stomach will have more oxalic acid absorbed into the body, and the probability of forming stones is relatively high. Patients with kidney stones can drink water or lemonade to quench thirst, because lemon contains a lot of sodium citrate, which can prevent kidney stones.
3. Drink plenty of tea every day
Generally healthy adults, drink tea 6 grams ~ 10 grams a day, divided into 2 ~ 3 times brewed can be.
4. Make tea in warm water
Since the beneficial chemical components of warm water tea are not as sufficient as hot water, it is best to use 70 °C ~ 80 °C water to make tea first, and drink it when the temperature drops to about 60 °C. Be sure not to exceed 70 ° C, too hot tea will cause strong irritation to the throat, esophagus and stomach, causing mucosal lesions.
5. Drink the tea after cooling
After the tea is cooled, it contains a lot of oxalate, which will form small stones, block the ureters, and increase the risk of kidney stones.
Drink less tea for two or five times
1. Avoid drinking tea on an empty stomach, because tea is in the lungs, it will cold the spleen and stomach, and it is easy to "get drunk".
2. It is not advisable to drink tea immediately before and after meals, because drinking tea before meals will dilute gastric acid, make the diet tasteless, and also affect the absorption function of the digestive organs. Drink tea immediately after meals, the tannic acid in tea will coagulate with protein, iron, etc. in food, affecting the absorption of protein and iron.
3. It is not advisable to take medicine with tea, because the tannic acid in tea will combine with many drugs to produce precipitation and affect the efficacy.
4. Drinking tea after drinking alcohol does not help to hangover, it will only hurt the kidney and damage the heart.
Third, how to drink tea is correct
1. Unfinished tea is the most likely to form tea scale
Scientific studies have shown that drinking water contains minerals and trace amounts of harmful heavy metal ions, such as cadmium, mercury, arsenic, etc. When the water is heated, with the increase of water temperature, the solubility of some calcium and magnesium ions decreases, the concentration of poorly soluble salts continues to increase, and when the water is concentrated to a certain extent, precipitation precipitates. These precipitates can enter the tea cup with water brewing, not drunk or put for a long time tea exposed to the air, tea polyphenols in tea and metal elements in tea rust will oxidize, produce brown tea rust, commonly known as tea scale, attached to the inner wall of the cup, tea rust contains cadmium, lead, mercury, arsenic and other harmful metals, is the culprit of endangering human health.
2. Long-term use of cups stained with tea scale can cause cancer
Li Hongzhu, an associate professor at the Tianjin Institute of Materia Medica, once said in an interview: "Tea scale contains toxic substances such as cadmium, lead, mercury, arsenic and carcinogens such as nitrite, which will adhere to the smooth surface of the teacup. As tea drinking enters the body and enters people's digestive system, it combines with proteins, fatty acids, vitamins, etc. in food to generate insoluble precipitates, which not only hinders the absorption and digestion of these nutrients by the human body, but also damages organs such as the stomach and intestines. In addition, tea cups that are often not cleaned still have more scale, which also contains a lot of heavy metals, which is extremely harmful to health. "At the same time, these oxides entering the body can also cause neurological, digestive, urinary hematopoietic system lesions and dysfunction, and even cause premature aging, especially arsenic, cadmium can cause cancer, cause fetal malformations, and endanger health."
3. How to thoroughly wash off tea scale
The thicker the tea scale, the more difficult it is to clean, so daily cleaning is just as important as regular cleaning. Experts recommend that individuals should wash carefully after each tea drink, even if there are no obvious tea stains left on the tea set, so as not to accumulate into a lot.
(1) Tea scale has been deposited for a long time and is not easy to clean, it can be easily cleaned with heated rice vinegar or soaked with baking soda for a day and night, and then brushed with a toothbrush. It should be noted that if you are using a purple clay pot, you do not need to clean it this way. The purple clay pot itself has pores, and the minerals in the tea scale can be absorbed by these pores, which can play a conservation role in the pot, and will not cause harmful substances to "run" into the tea to be absorbed by the human body.
(2) Put a small spoonful of orange powder or orange juice and other juices in the teacup and teapot, fill it with water and leave it for 2-3 hours, so that the tea scale and the tea set lose their adhesion and are easy to remove.
(3) Add water to a teapot or teacup, put in potato skin, heat and boil, rinse after cooling, and it is easy to clean.
(4) When using a metal tea spacer, it will become black due to tea scale, such as it cannot be washed off with medium-sized detergent, it can be soaked in vinegar, or soaked with bleach can be easily removed.
(5) Apply edible salt on the inside, especially where there is tea scale. Then brush the teacup vigorously with a toothbrush, and finally rinse it with clean water.
Special reminder, it is best not to use rough cleaning tools such as steel wire balls or cleaning balls to brush when removing tea scale, because these brushing tools are easy to damage the enamel of the inner wall of the tea set, making it thinner and thinner, and the tea scale generated in the future will easily penetrate into the deep layers of the tea set, which is extremely difficult to remove completely. Individuals should use a small, soft-bristled brush or toothbrush, a gentle cleaning cloth, etc. to clean.