Pu'er Tea Knowledge

2026/08/06

A Year of Work: From Spring Picking to Cakes on the Shelf

Yunnan spring tea is mostly picked from early March through May. Once maocha is sun-dried, it's pressed within a few weeks to a few months, and new spring raw tea reaches the market from April to June. Ripe tea, from wodui through drying and resting, often takes six months to 1–2 years to ship. Understanding the calendar explains how new-tea releases and pre-orders work.

2026/08/06

Withering, Reddening, and Yellowing: Common Faults in Pu'er Processing

Common processing faults in sun-dried pu'er include withering from over-spreading, red stems and leaves from incomplete kill-green, sealed yellowing, smoke, and scorching. Yunnan's group standard for sun-dried tea rules out withering, sealed yellowing, reddening, tossing, and long low-temperature kill-green. Some traces fade with age; others stay in the tea for good.

2026/08/05

Hand or Machine, Processing Station or Factory: Who Makes Pu'er

Pu'er is made in two stages: farmers and processing stations turn fresh leaves into sun-dried maocha, and factories then refine, blend, press, or pile-ferment it. Handwork suits small amounts of precious material, while machines are more consistent at kill-green, rolling, and pressing. Handmade tea isn't automatically better. What matters is whether it's done right.

2026/08/05

Modern Fermentation: Off-Floor, Small-Pile, and Temperature-Controlled

Traditional ripe tea is fermented in large piles on the fermentation room floor. Recent years have brought off-floor fermentation with the pile raised on wooden boards or bamboo racks, small piles of a few hundred kilograms, and equipment that controls temperature and humidity. The aim is cleaner, more controllable fermentation, and each method has its own flavor.

2026/08/04

Microbes in the Pile: Aspergillus niger, Yeasts, and Bacillus

Ripe pu'er wodui relies on microbes from the natural environment, and traditionally no starter culture is added. Research shows Aspergillus species (such as Aspergillus niger) dominate early on, giving way later to Bacillus, heat-tolerant fungi, and yeasts like Blastobotrys. It's a fermentation with a rhythm, which is different from tea going moldy.

2026/08/04

After the Pile: Breaking Up, Drying, Sieving, and Resting

Once wodui is complete, trenches are opened in the pile for airflow and the tea is spread out to dry slowly to within the national moisture standard. Then clumps are broken up, the tea is sieved into grades, and laochatou and debris are picked out. New ripe tea often carries a "pile taste," so factories usually rest it for a while before shipping to let the aroma settle.

2026/08/03

Watering and Turning: Controlling Pile Temperature and Moisture

Before wodui begins, water is added according to the maocha's condition, commonly about 30–40% of its weight, bringing moisture to around 40%. Pile temperature is mostly kept at 50–65°C, and the pile is turned to release heat when it goes higher. Turning usually happens every 7–10 days, 5–8 times in all, over about 30–45 days.

2026/08/03

Raw Material for Wodui: What Maocha Makes Good Ripe Tea

Ripe tea is made from sun-dried maocha. Traditionally it leans on late-spring and summer tea and sturdier leaves, which are rich in constituents, stand up to fermentation, and turn out sweet. In recent years there's also ripe tea made from old-tree leaf. A pile often runs from several tons to over ten tons, and the grade of the material shapes the refinement and body of the ripe tea.

2026/08/02

Traditional Wrapping: Cotton Paper, Bamboo Sheaths, Bamboo Baskets

Traditional pu'er packaging comes in layers: each cake is wrapped in cotton paper, seven cakes are stacked into a tong wrapped in bamboo sheaths and tied with bamboo strips, and 12 tong go into a bamboo basket to make one jian of about 30 kg. The materials all breathe, come from the mountains, and suited long-distance transport by horse caravan.

2026/08/02

Drying After Pressing: Air-Drying, Drying Rooms, and Temperature

Freshly pressed cakes hold a lot of moisture and need to be air-dried or dried in a drying room. Yunnan's processing guidelines recommend drying compressed tea at no more than 60°C, with moisture of no more than 13% for raw tea and 14% for compressed ripe tea. Too little drying leaves stuffy off-odors; too much heat makes the aroma dry and harsh.

2026/08/01

Cloth Bags and Stone Molds: The Details of Hand-Pressing

In hand-pressing, steamed tea goes into a cloth bag, and the maker twists the bag shut and kneads it into a ball. The spot where the bag is gathered becomes the dimple on the back of the cake. A stone mold goes on top, the maker stands on it and twists, and the cake sets for a few minutes. A skilled maker takes just minutes per cake, so every cake comes out a little different.

2026/08/01

Blending: The Art of the Recipe

Blending mixes materials from different regions, grades, seasons, or years in set proportions to balance a tea's aroma, taste, and staying power, and to keep each batch consistent. Classic recipes like 7542 and 7572 are blends. Blending is about recipes and honest labeling, which is a different thing from adulteration.