What are the dangers of brewing tea in a thermos cup

Everyone is familiar with thermos cups, especially in winter, they can be used to keep the water temperature cool for a period of time. Many people carry a thermos cup with them, but many friends who like to drink tea also like to use thermos cups to make tea, thinking that the tea will cool down more slowly. However, I have also seen introductions saying that drinking tea from thermos cups can cause cancer. Is this true or a rumor? We must pay attention to science in everything, so let the truth speak for itself.

Brewing tea in a thermos cup can cause cancer! Is it true or alarmist?

After extensive investigation, we found that there is currently no authoritative data to explain what carcinogens will be dissolved when brewing tea in a thermos cup. If tea leaves are kept in the cup for a long time, a large amount of tannic acid and thealkali in the tea leaves will overflow and affect the taste of the tea, but it will not lead to an increase in the so-called carcinogens.

Rumors stop at the wise!

So, are there any other dangers of brewing tea in a thermos cup?

In fact, it is not appropriate to use a thermos cup to make tea:

It will affect the taste: The thermos cup is relatively airtight, and the tea leaves stay in the cup for a long time. The tannic acid and thealkali in the tea leaves will overflow in large quantities, making the tea soup too thick and more bitter, affecting the overall taste of the drink.

Tea is not suitable for soaking at high temperature for a long time: Tea polyphenols, vitamins, caffeine and other contents in tea are heat-labile substances. If soaked at high temperature for a long time, these substances may not be effectively absorbed by the human body, greatly reducing the health function of tea.

Tea scale is easily attached to the inner wall of the thermos cup: If you use a thermos cup to make tea for a long time, tea scale may adhere to the inner wall. In addition, the thermos cup is not easy to clean. Drinking such tea for a long time is definitely not good for your health.

If you must use a thermos cup to make tea, what should you pay attention to?

1. Choose a high-quality thermos cup; 2. Control the amount of tea you put in; 3. Do not store tea for a long time (it is best not to drink overnight tea in a thermos cup); 4. Clean the thermos cup frequently.

In general, it is not wise to use a thermos cup to make tea. It will not only affect the flavor of the tea, but also greatly reduce the health benefits of the tea. It is recommended that office workers or people traveling prepare a set of mini travel tea sets, which are light and elegant. Even if the brewing conditions are simple, you can still enjoy good tea.