Why chrysanthemum tea turns green

Spring is especially suitable for drinking chrysanthemum tea. It can be foamed with chrysanthemum tea and become green. Why is this? Can you drink green chrysanthemum tea?

Spring is especially suitable for drinking chrysanthemum tea. A pot of chrysanthemum tea can be soaked, drinking and drinking, the color of chrysanthemum tea slowly turns from light yellow to light green. What's going on here? Is this green chrysanthemum tea still drinkable?

In fact, this is a normal phenomenon, and it is not a bad thing. There is no need to worry about it. Most of the chrysanthemum tea we usually make is light yellow. The study found that the reason why chrysanthemum tea is soaked out is pale yellow, mainly because of the flavonoids and other substances. Flavonoids are the main reason why people think that drinking tea is healthy. In recent years, many studies have found that flavonoids have good Antioxidant properties, can help the body eliminate free radicals in the body, have Anti-oxidation, Anti-Cancer, lower cholesterol, inhibit blood pressure and other health effects. In chrysanthemum tea, flavonoids are generally yellow, so when chrysanthemum tea is soaked, flavonoid pigments dissolve in water, and chrysanthemum tea looks yellow. However, flavonoids are very unstable and can easily be oxidized by oxygen in the air, losing their original yellow color and becoming green. Therefore, chrysanthemum tea will generally change color after a period of time.

In addition to the effects of oxygen, the acidity of the tea water and the metal ions in the water will also affect the color of chrysanthemum tea. Research at Wuhan University has found that if the water is alkaline, the chrysanthemum tea will be yellowish. If the water is acidic, the tea that comes out of the tea will be reddish-orange. If there are more iron ions and aluminum ions in the water, it will also cause the color of the chrysanthemum tea. Different. Therefore, chrysanthemum tea with tap water will be yellowish orange, while tea with distilled water will be lighter in color.

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