Pu-erh tea can potentially be stored for decades or longer, but there is no fixed maximum aging period and no guarantee that an older tea will be better. The realistic lifespan of Pu-erh depends on the original material, processing, compression, storage environment, and the condition of the tea over time.
Pu-erh tea can change dramatically during aging, particularly raw Pu-erh. Over time, its aroma, color, bitterness, astringency, sweetness, texture, and aftertaste may evolve as the tea interacts with its storage environment. However, aging is not a guarantee of improvement: the quality of the original tea and the quality of storage determine whether aging produces desirable results.
