The stainless steel cup can make tea. You can make tea using a regular stainless steel cup.
Stainless steel cups can be used for tea, because the water is close to neutral, the ionic strength is also very low, almost non-corrosive, and it is impossible to corrode stainless steel cups in a short period of time; secondly, although stainless steel contains chromium, but the state Stainless steel has established strict standards, so for regular stainless steel cups, even if chromium is precipitated when making tea, it is far from harmful to human health.
Note for making tea:
1. Insulation cup is not suitable
It is advisable to use ceramic pots and cups for tea, but not thermos cups. Due to the high water temperature, the aromatic oil in the tea will evaporate in a large amount, and the tannic acid and theophylline will exudate in a large amount. This not only reduces the nutritional value of tea, reduces the tea fragrance, but also increases harmful substances.
2, make tea with boiling water
Brewing tea with boiling water can not only make the aroma of the tea be more and faster, but also make the water extract in the tea dissolve more (such as caffeine and tea polyphenols), making the tea soup more mellow and refreshing . Therefore, a reasonable and scientific brewing method should be the first tea brewing with boiling water. The best brewing time is 5-10 minutes. At this time, the quality of the tea is better.
3. It is not advisable to make tea for too long
The tea leaves are best to drink after steeping for 4-6 minutes. Therefore, 80% of caffeine and 60% of other soluble substances have been soaked. If the time is too long, the tea will be bitter. Tea that has been boiled for a long time on a thermos or on a stove is prone to chemical changes and should not be drunk.
4. Don't chew tea leaves
Many people will chew the tea after drinking tea and swallow it, because the tea contains more carotene, crude fiber and other nutrients. But this is wrong. It is scientifically proven that brewed tea has some carcinogens, so don't eat brewed tea.
5. Make less strong tea
To make a cup of moderately concentrated tea, you usually need about 10 grams of tea. Some people like to make strong tea. If the tea is too strong, too much caffeine and tannic acid will be leached, which is too irritating to the gastrointestinal tract. After making a cup of tea, you can refill the water and make another 3-4 cups.
