green tea is the most alkaline.

The alkali content of green tea is higher than that of black tea, scented tea and oolong tea. The acidity and alkalinity of different tea leaves are different, green tea is the weakest, and black tea and oolong tea are relatively strong.

The pH value of tea measured at different soaking time is also different. The acidity is the weakest when it is brewed for 5 minutes, which is close to neutral. The acidity of tea soup soaked for 15 minutes after brewing is enhanced.

The acidity of tea leaves with different tenderness is also different. The acidity of bud tea is relatively weaker than that of leaf tea, that is, the more tender the tea leaves, the weaker the acidity, and the older the tea leaves, the stronger the acidity.

Some kinds of tea:

1. Black tea

Black tea is as popular as green tea, but black tea is completely fermented, and it looks very beautiful in soup red color. The method of making black tea is different from that of green tea, and the process of making black tea will be relatively troublesome. The rare varieties of black tea include Yinghong and Qihong.

2. Black tea

Yunnan Pu 'er tea, which is very famous, is one kind of black tea, and black tea is actually the premise of making green tea after watering and fermenting.

3. Oolong tea

Speaking of Oolong tea, I believe many people are familiar with it. Oolong tea is also a semi-fermented tea in green tea. Oolong tea is very troublesome to make, and the brewing method is also very particular. Oolong tea is also called Kung Fu tea in Guangdong. We Cantonese always say that we drink Kung Fu tea when we have morning tea. In addition, Tieguanyin and Fenghuang Shan Cong are both valuable varieties of oolong tea.