How about drinking tea in a thermos cup?
1. Affect 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 produce an aromatic smell and just the right refreshing bitterness. When tea is made in a thermos cup, the tea remains at a high temperature for a long time and is confined in the thermos cup, so the tea fragrance is not easy to volatilize; 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, affecting the absorption of beneficial substances
Tea should not be soaked for a long time. Vitamin C in tea will be destroyed when the water temperature exceeds 8℃. Soaking in high temperature for a long time will greatly accelerate the loss of beneficial substances, thus reducing the health care function of tea.
3. The generated tea scale is not easy to clean
Tea will accumulate a layer of dirty tea scale after being soaked in a cup for a long time, and it will often accumulate a layer of dirty tea scale after being brewed in a thermos cup for a period of time, and it is not easy to clean.
Does making tea in a thermos cup cause cancer?
At present, there is no authoritative data to explain what carcinogens will be dissolved in making tea in a thermos cup. The so-called "experts pointed out that tea leaves will exude tannic acid and theophylline for a long time in high temperature, leading to an increase in carcinogens" and so on, which are actually misinformation.
What's the best cup for making tea
1. Pottery clay cup
The most famous teapot is a kind of pottery, with a fire temperature of 1~12°C, dense texture, no leakage, and invisible pores, which can absorb tea juice and store tea flavor, and its heat transfer is slow and not hot, even if it changes suddenly, it will not break; Using teapot to make tea is mellow in aroma and good in heat preservation, which can preserve the essence of tea. It is generally believed that semi-fermented teas such as oolong tea and Tieguanyin tea used for soaking in Taiwan Province can best show the characteristics of tea taste.
2. The porcelain cup
has no water absorption, and the sound is clear and long. White is the most expensive porcelain, and it is fired at about 13 C, which can reflect the color of tea soup, with moderate heat transfer and heat preservation, and will not have chemical reaction to tea. Tea can obtain good color and fragrance, and its shape is beautiful and exquisite. It is suitable for brewing light fermentation and heavy aroma, such as Wenshan packaged tea.
3. The glass
is transparent in texture, fast in heat transfer and airtight. When tea is made by glass, the movement of tea leaves up and down, the gradual stretching of 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 be broken and hot, 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 gastric juice secretion, hinder digestion, and even cause palpitation, headache, stomach discomfort, dizziness, upset and other "drunk tea" phenomena, and affect the absorption of protein, and also cause gastritis. If "tea drunkenness" occurs, it can be relieved 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 2 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, affecting the absorption of iron and protein by the 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 excited, affect your sleep, and even cause insomnia, especially the newly picked green tea. After drinking it, your nerves are extremely excited and cause insomnia.
4. Avoid drinking overnight tea
It is better to drink tea immediately. If the tea is left for a long time, it will not only lose nutrients such as vitamins, but also be prone to rancidity and illness.
5. Avoid drinking the first course tea
Because modern tea is inevitably polluted by pesticides, fertilizers, dust and other substances in the process of planting, processing and packaging. The first course of tea is actually the water for washing tea, so it should be poured into boiling water as soon as possible.