Green tea is green, right? Why is my green tea yellowish brown when brewed?

Green tea is because the brewed soup is green and has not been fermented, and the color of its finished product retains the green color of new tea.

The color of green tea after soaking is light green at first, and it will be slightly bright yellow with the extension in the cup. Water color is pure, no turbidity and no foam. Green tea sealed and refrigerated in the refrigerator can basically keep the state of new tea, or it will be slightly yellowish when it is freshly brewed. If it is not well preserved, green tea stored at room temperature can be easily oxidized to darken its color. The color of tea brewed with this kind of tea can range from light yellow to dark yellow, and dark yellow tea has no clear fragrance of green tea.

Extended data:

Precautions:

1, tea can generally stay in the human body for about 3 hours, while strong tea stays longer, which makes theophylline accumulate too much in the human body and leads to neurological disorders. Due to the effect of tannic acid in tea, the mucus secretion function of intestinal mucosa decreases and constipation may occur. The amount of tea is generally 5~ 10 g per day, and it is appropriate to soak it twice.

2. Long-term drinking of tea will not only lose nutrients such as vitamins, but also easily deteriorate. Even the tannic acid in tea will become a very irritating oxide, which is easy to hurt the spleen and stomach, especially in summer, which will cause gastrointestinal inflammation.

3, it is best not to drink tea two hours before going to bed, otherwise it will make the spirit too excited and affect sleep, and even cause insomnia. Drinking tea before going to bed in the elderly can easily lead to anxiety and polyuria, which will also affect sleep. If insomnia is caused by drinking tea, it is useless to use sleeping pills.

Baidu encyclopedia-green tea