The appearance of new Pu 'er tea is fresh, mostly yellow-green, with white fur and strong taste. After a long period of oxidation, the appearance of aged tea will be purple, and the white hair will turn yellow-brown. Usually, the white paper of aged Pu 'er tea has become obsolete with the passage of time, and the paper is slightly yellow. Therefore, the age of Pu 'er tea can be judged from the aging degree of hand-woven and printed paper. But this can only be used as a reference, not as an absolute basis, because some unscrupulous businessmen may take advantage of this psychology and package secondary products with yellow old wrapping paper.
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How to correctly store Pu 'er tea by expanding data;
The circulating air. There is more oxygen in the circulating air, which is beneficial to the reproduction of some microorganisms in tea, thus accelerating the change of tea, but Pu 'er tea can't be hung on the balcony. There should be moderate air circulation, but it should not be placed in the tuyere. In addition, the surrounding environment can't smell, otherwise the tea will go bad. Therefore, it can't be placed in the kitchen or other environment with the smell of life or industry.
Constant temperature. The temperature of Pu 'er tea should not be too high or too low. The temperature should be based on the local environment, without artificial temperature. Normal indoor temperature is enough, and it is best to keep it between 20 and 30 degrees Celsius all the year round. Too high a temperature will accelerate the fermentation of tea and turn sour. Relatively speaking, Pu 'er tea changes faster in spring, summer and autumn than in winter. At any time, Pu 'er tea should not be exposed to the sun, and it is best to stay in the shade.
The humidity is moderate. Good Pu 'er tea should be stored in a dry warehouse, which means it should be stored in a dry environment to avoid moisture. Too dry environment will slow down the aging of Pu 'er tea, so there should be some moisture. In a relatively dry environment, you can put a small glass of water next to the tea leaves to slightly increase the humidity in the air.
However, too humid environment will lead to rapid changes in Pu 'er tea, which will often be "moldy" and make tea inedible. The humidity should be controlled manually, and the annual average humidity should not be higher than 75%. Because the coastal area has a warm maritime climate, the humidity in rainy season will be higher than 75%, so it is more important to open the window for ventilation and water distribution in time.
reference data
/baike.baidu.com/item/%E6% 99% AE% E6% B4% b1%E8% 8c% B6/384 "target =" _ blank "title =" Baidu Encyclopedia-Pu 'er Tea "> Baidu Encyclopedia-Pu 'er Tea.