Do you have fake tea? How to identify?

How to distinguish real tea from fake tea can generally be identified by sensory evaluation. That is to say, the color, aroma, taste and shape of tea can be judged by seeing, smelling, tasting and touching the organs of vision and taste.

When identifying, stick a handful of dry tea on your hands and smell its fragrance. Everything that has the inherent fragrance and pure fragrance of tea is real tea. If the aroma is low or there is a strong name, it means that the quality of tea is poor; If there is bad smell, burnt smoke or other peculiar smell, it is fake tea. (Take a small amount of tea and boil it; The smell of true and false tea is easier to distinguish.

It can also be distinguished from the color of tea. Grab a handful of tea leaves and put them on a white porcelain plate and spread them out for observation. If green tea is dark green and black tea is black, that is the true color of tea. If the color is messy and does not match the true color, it is suspected of fake tea. If it is difficult to distinguish smell from color, a small amount of tea should be diluted and evaluated. Further from the color, fragrance, taste and shape of tea, especially from the unfolded tea. The main basis is as follows:

1, and the sawtooth of tea edge is about 16-32 pairs. There are sawtooth, double sawtooth, tooth shape and notch shape. The sawtooth of blade is characterized by dense depth in the upper part; The lower part is sparse, and the petiole is smooth and serrated. Most of the leaves of other plants are serrated or non-serrated.

2. The veins on the back of tea are convex, and the main veins are obvious. Seven 7- 10/0 pairs of lateral veins are sent to both sides, which extend laterally to the distance of13 from the edge, and bend upward in an arc shape, forming a closed "network system" with the upper veins. The lateral edges of leaves of other plants are mostly pinnate, reaching the edge of leaves.

3. The hairs on the back of tea leaves, except those on the main veins, are mostly short at the base and have large curvature, while the hairs on other plants are erect or have no melting hairs.

4. The distribution of tea leaves on stems is spiral and alternating, while the leaves of other plants are usually opposite or clustered. If it is difficult to distinguish from sensory evaluation, it can be identified from its biochemical components by general chemical methods or modern analytical means.