Tea stems contain a considerable amount of aroma substances. In the process of tea processing, aroma substances are transferred from stems to bud leaves, which combine with effective substances in leaves to form higher and stronger aroma quality. Therefore, proper tea stems are helpful to make tea fragrant and strong.

High-quality oolong tea, which is famous for its high aroma, is as close as tea stems. To make oolong tea, you need to pick 3-4 mature leaves with tender tips as raw materials, and keep some stems to form a unique oolong tea with high aroma, so tea stems are never unique to black tea.

Tea stalk is monosodium glutamate of black tea.

Most black tea needs ripe fresh leaves during the picking process. Considering the flavor of tea soup, tea polysaccharide, protein and minerals in mature leaves are many times higher than those in young leaves. Therefore, considering the rich taste, it is essential that the raw materials of black tea have suitable tea stems.

Related research also confirmed the role of tea stems: for example, tea stems are rich in tea polysaccharides, lignin, cellulose and a certain amount of theanine, which are water-soluble substances and easily soluble in water, and become the effective components of tea soup, making you feel that this tea is better to drink.

03 Tea stems are helpful to the fermentation of "Golden Flower"

Jinhua Fuzhuan tea has a unique fermentation process, which is also the key process to form the quality and flavor of Fuzhuan tea. Its purpose is to promote the growth and reproduction of a probiotic called "Ascomycetes coronaria" in tea bricks by controlling certain temperature and humidity environmental conditions, because the raw bacteria are golden yellow, commonly known as "Golden Flower". When this kind of Fu brick with "Golden Flower" is brewed, the mushroom fragrance and floral fragrance blend into the tea soup, which makes the tea taste more mellow and mild, with rich mushroom fragrance and long aftertaste.

To make golden flowers flourish, tea stalks are essential. A proper amount of tea stalks can increase the gap of the brick and ensure sufficient oxygen and fermentation. However, if the content of tea stalks is too low, the ventilation will be affected because the brick is too tight, and the golden flower will not breathe well and the natural quantity will be less. The results show that when the straw content of the tile is lower than 13.5%, the golden flower particles are small and dispersed. When the stem content is about 16.5%, the golden flowers are flourishing, and the "flowers" are large and dense, and other quality factors of the whole Fuzhuan tea are also good, showing a mellow taste and strong floral fragrance.

For tea lovers who pay attention to health, the significance of tea stems is even greater. It contains a lot of tea polysaccharide, lignin and cellulose, which can promote gastrointestinal peristalsis and help food digestion. Therefore, for friends who need to lose weight and don't want to control their appetite, a cup of black tea can make you eat and drink enough, and you don't have to worry about eating high-calorie food to gain weight.