The effects and functions of Pu 'er tea are as follows:

1, Pu 'er tea is mild in nature, which warms the stomach without hurting the stomach, especially cooked tea. The post-fermentation of Pu 'er tea is a series of complex changes in enzymatic oxidation and microbial activity.

2, people with strong liver fire are easily excited or impulsive, irritable and irritable, suitable for people with general internal heat to drink, 4 cups of Pu 'er tea a day can relieve the skin that is prone to itching or acne, and the symptoms of deficiency fire such as dry mouth or bitter taste will gradually be eliminated.

3. In the study of the influence of Pu 'er tea on blood pressure, heart rate and rheoencephalogram, He Guofan and Lin Yuechan believe that the physiological state of cerebral blood vessels and cerebral hemodynamics have changed after drinking Pu 'er tea. Data show that drinking Pu 'er tea may have the effects of lowering blood lipid, improving insulin resistance and preventing cardiovascular diseases. The results of in vitro and animal experiments show that Pu 'er tea extract has obvious antioxidant activity, scavenging free radicals, reducing the content of unsaturated fatty acids in LDI and increasing the content of tocopherol in low-density lipoprotein, thus reducing the oxidation sensitivity of low-density lipoprotein. It is concluded that drinking Pu 'er tea can prevent atherosclerosis and cardiovascular diseases. Killing cancer cells is powerful.

4. Experiments show that Pu 'er tea contains a variety of trace anti-pain components, such as Q- carotene, vitamin B 1, B2, C, E and so on. In the process of drinking Pu 'er tea, caffeine has many positive effects on human body.

Classification of Pu 'er tea:

A, according to the press shape classification:

1. Cake tea: flat and disc-shaped, in which each piece of lychee cake has a net weight of 357 grams, and every seven pieces are hoisted, each barrel weighs 2500 grams, hence the name lychee cake.

2. Tuocha: The shape is about the size of a rice bowl, each with a net weight of 100g and 250g, and now there are mini small Tuocha with a net weight of 2g-5g.

3, brick tea: rectangular or square, 250 grams-1000 grams, made this shape mainly to facilitate transportation.

4. Golden melon tribute tea: pressed into semi-melon shapes of different sizes, ranging from 100 grams to hundreds of kilograms.

5. Thousand taels of tea: pressed into compact strips of different sizes, each strip is relatively heavy (the smallest tea treaty 100 kg), hence the name: Thousand taels of tea.

6. Loose tea: Pu 'er tea, which is not pressed in the process of making tea, is loose tea, which can be divided into thick fat leaf tea made of whole tea and small strip bud tip tea made of bud tip.

7. Mushroom tea: Pu 'er tea is pressed into mushroom shape, weighing about 250g.

8. Column tea: pressed into columns of Pu 'er tea, and then wrapped with bamboo chips or bamboo shells. The weight is as small as 100 g and as large as more than one kilogram.

9. Seven cakes: Round tea cakes are usually packed with seven cakes, so they are called seven cakes, with a weight as small as 25 grams and as large as 3 kilograms.

10, Xiaojintuo: round tea, fashionable to carry, the hottest on the Internet, weighing 2 grams. The smallest Pu 'er tea in the world.

Second, folding is classified according to the fermentation process:

1. Raw tea is fresh tea picked and preserved in a natural way without accumulation and fermentation. Raw tea is strong and exciting. The raw tea made by Chen Fangxin or not long ago has a strong bitterness, and the soup is light or yellow-green. Raw tea is suitable for drinking and long-term storage, and the color of raw Pu 'er tea is getting darker every year. The fragrance is getting mellow.

2. Cooked tea tends to be mild after pile fermentation. Cooked tea has mild tea properties, and the tea leaves are silky, soft and mellow, which is more suitable for daily drinking and of higher quality. Cooked tea is also worth collecting, and its fragrance will become softer and richer with the aging time. With 1973 as the dividing point, there was no cooked tea before 1973.