Unlike most teas, pu-erh needs to breathe, so it should never be sealed in an airtight container. Instead, keep it in something that allows airflow, such as an unglazed clay jar, a cardboard box, or paper wrapping. Avoid metal tins and plastic containers unless they have small holes for ventilation.

The storage environment should be stable and warm, ideally between 20 and 30 °C (68–86 °F). It’s important to keep the tea away from direct sunlight, heaters, and cold drafts, as sudden changes in temperature can disrupt the aging process. Humidity plays an equally important role. The ideal range is around 60–70 percent relative humidity — not too dry, as that will slow the fermentation, and not too damp, as excessive moisture can cause mold. If the air is very dry, you can place a small clay bowl of water near the tea, but make sure it doesn’t touch the leaves. In humid environments, a dehumidifier or some silica gel packets nearby can help keep the moisture balanced.

Pu-erh also needs gentle airflow. It should be stored in a place where air can circulate naturally but where the tea won’t pick up strong odors. Avoid kitchens, bathrooms, or rooms with perfumes, smoke, or cleaning chemicals, since pu-erh easily absorbs surrounding scents. The tea should be kept in the dark as well, because exposure to light can damage its natural oils and microbial culture. An opaque container or a cupboard away from windows works well.

For long-term aging, raw (sheng) pu-erh continues to mature beautifully over ten to thirty years if the conditions remain steady and warm. Ripe (shou) pu-erh, on the other hand, is typically ready to drink after a few years, but it still benefits from some aging to smooth out its earthy notes. Labeling each cake with its year and region is a good practice for tracking its development over time.

You should never refrigerate or freeze pu-erh, as cold storage halts microbial activity and can trap unwanted moisture once it’s brought back to room temperature. Likewise, avoid plastic bags or sealed jars, and try not to handle the tea frequently. With the right combination of air, warmth, and humidity, pu-erh will continue to evolve gracefully, deepening in aroma and complexity for years to come.