Young raw Pu-erh often tastes bitter or astringent because its fresh leaves contain naturally occurring compounds such as catechins and other polyphenols, while the tea has not yet undergone the long-term transformation associated with aged Pu-erh. Bitterness and astringency are not automatically signs of poor quality; their intensity, balance, and aftertaste matter more.
For long-term Pu-erh aging, the goal is to provide a clean, stable environment with moderate humidity, reasonable airflow, protection from light and strong odors, and minimal temperature extremes. Storage should encourage gradual transformation without exposing the tea to excessive moisture.
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.
Sheng and shou are the two major styles of Pu-erh tea: sheng means raw Pu-erh, while shou means ripe Pu-erh. The difference is primarily how the tea is processed and fermented, and this leads to major differences in flavor, appearance, aging behavior, and buying considerations.
