How about drinking tea in a thermos?
1, affecting the taste
When making tea with ordinary tea sets, a large number of beneficial substances are quickly dissolved in water, which makes the tea soup have a delicate fragrance and a just refreshing bitter taste. When making tea in a thermos cup, the tea leaves remain at a high temperature for a long time and are confined in the thermos cup, so the tea fragrance is not volatile; A large amount of tannic acid and theophylline in tea overflowed, which also made the tea soup too thick and bitter, and the taste would not be too good.
2, affect the absorption of beneficial substances
Tea should not be soaked for a long time. When the water temperature exceeds 80℃, vitamin C in tea will be destroyed. Soaking at high temperature for a long time will greatly accelerate the loss of beneficial substances, thus reducing the health care function of tea.
3, that generate tea scale is not easy to clean.
Tea leaves soaked in the cup for a long time will accumulate a layer of dirty tea dirt. After a period of time, a layer of dirty tea dirt will accumulate, which is not easy to clean.
Can making tea in a thermos cup cause cancer?
At present, there is no authoritative data to explain what carcinogens will be dissolved in tea in thermos cups. The so-called "experts point out that tea soaked in high temperature for a long time will exude a lot of tannic acid and theophylline, which will lead to an increase in carcinogens" and so on, which are actually misinformation.
What cup is the best for making tea?
1, clay cup
The most famous teapot is a kind of pottery. The firing temperature of the finished pottery is 1, 000 ~ 1, 200℃, with dense texture, no leakage and invisible pores. Can absorb tea juice, store tea flavor, slowly transfer heat without burning hands, even if it is abrupt, it will not break. Using teapot to make tea has mellow aroma and good heat preservation, which can preserve the essence of tea. It is generally believed that oolong tea, Tieguanyin tea and other semi-fermented teas brewed in Taiwan Province Province can best show the characteristics of tea taste.
2. Porcelain cups
No water absorption, clear voice and long rhyme. White porcelain is the most expensive porcelain, and the firing temperature is about 1300℃, which can reflect the color of tea soup, with moderate heat transfer and insulation, no chemical reaction to tea leaves, and good color and fragrance can be obtained when making tea. Beautiful and exquisite appearance, suitable for brewing light fermentation and heavy aroma, such as Wenshan packaged tea.
3. Glass
Permeable texture, fast heat transfer, airtight. When making tea with a glass, the movement of tea leaves up and down, the gradual stretching of tea leaves and the color of tea soup can be seen at a glance. The disadvantage of glass tea set is that it is easy to break and burn, but it is cheap and good.
What are the taboos for drinking tea?
1, avoid drinking tea on an empty stomach.
Drinking tea on an empty stomach will dilute gastric acid, inhibit the secretion of gastric juice, hinder digestion, and even cause palpitation, headache, stomach discomfort, dizziness, upset and other "drunken tea" phenomena, and affect the absorption of protein, but also cause gastric mucosal inflammation. If "tea drunkenness" occurs, it can be alleviated by taking candy or drinking some sugar water.
2. Avoid drinking a lot of tea before and after meals.
It is not advisable to drink tea for about 20 minutes before and after meals. If you drink tea, it will dilute the gastric juice and affect the digestion of food. Moreover, because tea contains oxalic acid, oxalic acid will react with iron and protein in food, which will affect the absorption of iron and protein by human body.
3. Avoid drinking tea before going to bed
It is best not to drink tea within 2 hours before going to bed. Drinking tea will make you feel high, affect your sleep and even insomnia, especially the newly picked green tea. After drinking, the nerves are extremely excited and cause insomnia.
4. Avoid drinking overnight tea
You'd better drink tea at once. Tea leaves have been stored for a long time, which not only leads to the loss of nutrients such as vitamins, but also tends to be rancid and sick.
5, avoid drinking the first sip of tea
Because modern tea is inevitably polluted by pesticides, fertilizers, dust and other substances in the process of planting, processing and packaging. The first tea is actually the water for washing tea. Pour boiling water as soon as possible.