Many people think that drinking tea can supplement vitamins. There is even a legend that Tibetans need to make butter tea to supplement vitamins. Because boiled water is usually used to soak water, many people are confused about whether boiled water will destroy vitamins. For example, green tea is usually brewed with water at 80℃ instead of boiled water. Many people say that boiled water is to "avoid destroying vitamins". Does boiling tea destroy vitamins?

1, vitamin c is more easily oxidized.

In tea, tea polyphenols are easily oxidized into theaflavins. The tea brewed by everyone will not be drunk immediately, and the color will gradually darken, which is the result of the oxidation of tea polyphenols. Iron and copper ions can promote this oxidation process, while vitamin C can inhibit this process. It can be said that "vitamin C makes tea polyphenols more stable", not "tea polyphenols combine with iron ions and copper ions to make vitamin C more stable". Relatively speaking, vitamin C is more easily oxidized than tea polyphenols.

2. tea does not contain vitamin C.

There is almost no vitamin C in tea. Because there is no vitamin C, it doesn't matter whether it will be destroyed by boiling water. The vitamin content is 0, and almost all other vitamins are 0. There are some minerals, but they basically come from water itself. There are few "nutrients" in tea, which can be completely ignored! Tea is brewed with tea leaves. Even in tea, the content of vitamin C is not much.

3. Low vitamin C content

Take green tea as an example. A cup of 4 grams of tea, 500 ml of tea, brewed several times, is already very strong. Even if all vitamin C in tea is dissolved in tea, it is less than 1 mg, and the concentration is close to 0. People need 100 mg of vitamin C every day, and it takes more than 500 grams of green tea to contain so much vitamin C.

Tea is really a healthy drink. Pure tea is sugar-free, fat-free and calorie-free. It has a variety of flavors and some "bioactive components", such as tea polyphenols and theanine. If these "active ingredients" are really good for health, it will be fine. If not, there is no harm.