【Pu'er Tea Numbering】Pu'er cake tea numbering usually consists of 4 digits, such as 7572. The first two digits represent the creation standard, referring to the 75-year formula execution standard; the third digit is the grade of the raw tea leaves, from high to low分别是特级 →1级→9级, different grades have different flavors; the fourth digit is the tea factory number, Kunming Tea Factory is 1, Menghai Tea Factory is 2, Xiaguan Tea Factory is 3, Pu'er Tea Factory is 4, other numbers are self-compiled by other factories.

【Different Seasons, Different Tea Names】Pu'er tea uses fresh leaves from Yunnan large-leaf tea trees of excellent quality, divided into spring, summer, and autumn specifications. Spring tea is divided into "spring tip", "spring middle", and "spring end" three grades; summer tea is also called "second water"; autumn tea is called "valley flower". Among Pu'er teas, spring tip and valley flower have the best quality.

【Pu'er Tea • Evaluation Method】First look: The tea cake should have a glossy appearance, be neatly pressed, and the tea liquor should be pure; Second smell: The tea leaves should have no odd odor, pure taste, and a special aroma; Third drink: The mouthfeel should be smooth, with a natural fresh fragrance. Four key points: One clear: The taste should be clear, no musty smell; Two pure: The tea color should be reddish, not like ink; Three proper: Storage should be dry, not damp; Four qi: The flavor should be comfortable, not mixed with miscellaneous tastes.

【Drinking New Tea Should Not Be Excessive】New tea refers to tea picked less than a month ago. Although the shape, color, and taste of new tea are superior, because the tea leaves are stored for too short a time, the content of polyphenols, alcohols, and aldehydes is relatively high. If you drink new tea for a long time, you may experience abdominal pain and bloating. At the same time, new tea also contains strongly active tannic acid, caffeine, etc. Excessive consumption can highly excite the nervous system, causing symptoms such as weakness in the limbs, cold sweats, and insomnia, known as "tea drunkenness".

【Elderly Should Not Drink Raw Tea】Raw tea here refers to roasted green tea that is directly dried after de-enzyming without rolling. It has a natural green appearance, and the internal components are basically the same as the compounds contained in fresh leaves. The conversion and volatilization of low-boiling-point aldehyde and alcohol compounds are not much, and the fragrance carries a strong raw green taste. If elderly people drink this kind of tea, it strongly irritates the gastric mucosa and can easily cause stomach pain after drinking; young people may also feel stomach discomfort after drinking, commonly known as "scraping the stomach". If you mistakenly purchase this kind of raw tea, it is best not to brew and drink it directly. You can put it in an oil-free iron pan and slowly stir-fry over low heat to remove the raw green smell. It can be drunk after a light chestnut fragrance is produced.