The preservation of Pu 'er tea is qualitatively different from other teas. The vast majority of tea collections pursue "preservation" to prevent tea from oxidation, but Pu 'er tea is different. The "aging" of Pu 'er tea needs to keep proper temperature and humidity.

Generally speaking, the moisture content of Pu 'er tea should be controlled at 8% ~ 1o% and the storage temperature should be controlled at 20~25℃. Therefore, it is very important to control the temperature of Pu 'er tea if it is moisture-proof in winter. In winter, the humidity is relatively low, so you can completely adjust the humidity with a dehumidifier. The dehumidifier reduces the humidity of the whole environment space, thus ensuring that Pu 'er tea is not wet.