First, the post-fermentation of ripe Pu-erh tea mostly relies on fungal action. In spring and summer, white mold develops, allowing the tea leaves to ferment. In the damp autumn and winter, yellow mold appears, accelerating the aging of the tea. This is a normal phenomenon (but green and black mold should not be present). Each cycle advances the tea's flavor, making it more enjoyable. However, during fermentation, the first two brews may not taste good and can be discarded; from the third or fourth brew onward, it returns to normal, so there is no need to worry.

Second, when storing tea in a canister, it is best to place it in a cabinet rather than a highly ventilated area. This prevents the tea from turning sour and unpleasant, and it slows down fungal action, which could lower the tea's quality. Once the taste and texture meet your ideal preferences, remember to seal the opening with cotton cloth (but do not cover it with a lid) to allow the tea to breathe and maintain its optimal state. Ripe tea reaches its peak flavor earlier, making it more affordable. Although it lacks the astringency of raw tea, it saves aging time, and more Taiwanese people who appreciate aged tea flavors are gradually accepting it.

Essentially, good raw Pu-erh tea, much like high-quality green tea, remains sweet when brewed at low to medium temperatures. When the tea leaves turn red, the buds shift from white to light brown, and the surface becomes glossy, the tea is at its best. At this point, you can cover the container to slow down the post-fermentation process. If you purchase a larger quantity, it is better to keep the tea leaves whole and store them together for better results. Of course, the storage container should also be larger.