A Pu'er is not made in a factory. It is born in the hands of a picker, passes through the fire of a wok, dries in the Yunnan sun, and takes its shape under the press, or sometimes simply remains loose leaf. Each step counts, each action determines what the tea will become in the cup. Here is the complete journey, from bud to cake.
Plucking: it all starts by hand
Quality Pu'er begins with fine plucking. We speak of yi ya yi ye (一芽一叶, one bud and one leaf) or yi ya er ye (一芽二叶, one bud and two leaves). The bud, still tightly closed and covered with a fine white down, is the most concentrated part of the plant; it is where the aromatic compounds, amino acids, and pectin that will give the tea its richness are located.
Plucking is done in the morning, once the dew has evaporated, to avoid excess moisture in the leaf. On ancient trees, it is done entirely by hand, sometimes by climbing the tree, on slopes inaccessible to machines. The gesture is precise: the bud and the adjacent leaves are picked with a supple movement that breaks the stem without crushing the material. A leaf damaged during harvesting will oxidize poorly, and the entire tea will suffer.
Withering: letting the leaf breathe
As soon as they are plucked, the leaves are spread in a thin layer on bamboo trays, in the shade or in an airy space. This is withering, wei diao (萎凋) in Chinese. The leaves lose some of their moisture, become supple, and relax. This is not yet a profound chemical transformation: it is a conditioning process. The leaf prepares to receive the heat that will follow.
The duration varies depending on the weather, temperature, and ambient humidity. Two hours is a common duration, but it is the producer's eye and hand that decide, not a clock. The leaves must be supple without being limp, still a little lively without being stiff.
Sha qing: fixing the leaf in the wok
This is the most crucial step. Sha qing (杀青), which translates to "killing the green" or "fixing," consists of briefly heating the leaves in a large cast-iron wok, heated over a wood fire, at a temperature of about 200 °C. The producer turns the leaves with bare hands in the burning wok, with a regular rhythm that tolerates no approximation.
Nowadays, few producers still use traditional woks; many resort to machines that heat the leaves for a brief pass. However, this critical step should be performed by hand to obtain the best Pu'er.
What sha qing does is deactivate most of the enzymes responsible for oxidation in the leaf – the very same ones that turn green tea into black tea if left to their own devices. But – and this is the subtlety unique to Pu'er – sha qing does not destroy all the enzymes. It deliberately leaves a small fraction active. These residual enzymes will allow Pu'er to continue to evolve over time, year after year. This is the fundamental difference between Pu'er and ordinary green tea: green tea is frozen in time, Pu'er is designed to go through it.
The mastery of temperature and duration is entirely manual. Too short, the enzymes remain too active, and the tea will oxidize too quickly. Too long or too hot, the enzymes are destroyed, and the tea will never age. This is where the producer's expertise makes the difference between a Pu'er that will last decades and a stillborn tea.
Rolling: releasing the aromas
After sha qing, the leaves are still warm. They are briefly allowed to cool – the liang qing – to equalize their water content, then comes the rolling: rou nian (揉捻). The leaves are rolled and pressed, traditionally by hand on a flat surface, to break the plant cells without tearing the leaf. This action releases the internal juices – polyphenols, amino acids, essential oils – which will migrate to the surface of the leaf and give the tea its aromatic depth during infusion.
The intensity of rolling depends on the desired result. Light rolling produces a softer tea with more discreet aromas. Firm rolling yields a more powerful tea, with a more pronounced bitterness and a richer sweet aftertaste. It is a delicate balance that the producer adjusts according to the raw material and the character they want to impart to the tea.
Sun-drying: time as an ingredient
The rolled leaves are then spread out in the sun, on bamboo mats or clean tarpaulins, and dried for three to five hours depending on the sunshine. This is shai gan (晒干), sun-drying, and it is perhaps the most underestimated step in the entire chain.
Why the sun rather than an electric dryer? Because sun-drying is slower, more irregular, and less hot. It preserves the residual enzymes that sha qing deliberately left active, and it retains some moisture in the leaf that will facilitate future fermentation. A sun-dried Pu'er can age for decades. A Pu'er dried at high temperature in a machine is, in fact, a dead tea: stable, certainly, but incapable of evolving.
This is where Yunnan's weather comes into play. Sunny spring days are ideal. If rain occurs during drying, the leaves must be brought in, waited for, and started again, and the tea will no longer be quite the same. Sun-drying is an act of patience and dependence on the sky. It is also one of the gestures that distinguish artisanal Pu'er from industrial Pu'er.
Maocha: the raw material
At this stage, we have maocha (毛茶), literally "rough tea." These are the leaves after plucking, withering, fixing, rolling, and sun-drying. Maocha is already a drinkable tea: it can be brewed as is, and it is already good. But it is above all the starting point for everything that follows.
It is from maocha that the fundamental choice is made: to leave it as is to make a raw Pu'er (sheng), which will age naturally over the years, or to subject it to accelerated fermentation to make a fermented Pu'er (shou).
Pile fermentation: the shou path
Fermented Pu'er goes through an additional step that the Chinese call wo dui (渥堆), pile fermentation. The maocha is arranged in large piles in a workshop, moistened, then covered with tarpaulins. Under the combined effect of heat, humidity, and microbial activity – fungi, yeasts, filamentous bacteria – the leaves are deeply transformed over a few weeks to a few months.
The producer regularly turns the piles to homogenize the fermentation, controls the temperature in the heart of the pile (which can exceed 60 °C), and adjusts the watering. This is an empirical process, passed down from master to apprentice, requiring considerable experience. Too short a fermentation results in a tea that is still harsh; too long, a tea that is bland and unstructured. The right window is narrow.
This technique was developed in the 1970s at the Kunming tea factory, to reproduce in a few months what the natural aging of raw Pu'er takes decades to achieve. The result is not identical – a shou is not an old sheng – but it produces a tea of immediate roundness and sweetness that has made it popular throughout China, and then worldwide.
Compression: shaping the tea
Pu'er can be drunk as loose leaf, but its most iconic form is the compressed cake, the bing cha (餅茶). To form it, the maocha is placed in a cloth, briefly steamed to soften it, then compressed under a stone press traditionally, hydraulic in modern workshops. The cake is then unmolded and slowly dried on shelves.
Compression is not just a packaging gesture. It slows down the exchange of air between the leaves and the outside, which modifies the speed and nature of aging. Tightly compressed tea ages more slowly than loosely pressed tea or loose-leaf tea. Before pressing, the tea is briefly steamed to soften the leaves, so they do not break under the press. This is why cakes last better for decades: compression protects the tea while allowing it to breathe, much like a good cork does for wine. We detail each form of Pu'er in a dedicated article.
What our methods change
The steps we have just described are common to all Pu'er. What changes from one producer to another is the precision of each gesture, the quality of the raw material, and the small adjustments accumulated over the years. We refined some of our production methods over twenty years ago, with our on-site team, to obtain clearer results at each stage, but the principle remains the same: hands, a wok, sun, time.
No electric drying. No mechanical rolling. No additives. The tea you hold in your cup was made with three things: the leaf, heat, and time. That's all it takes. And for the fermentation of our shou, precise techniques, much longer, slower, and gentler (90 to 100 days), to obtain a rounder, less earthy, less dusty tea.
Frequently asked questions
What is the difference between sha qing and roasting?
Sha qing (wok-fixing) is a brief heating that partially deactivates the leaf's enzymes, without destroying them entirely. Roasting, used for some green teas or oolongs, goes further and freezes the leaf irreversibly. It is this incomplete fixing that allows Pu'er to continue to evolve over time, and fundamentally distinguishes it from all other teas.
Why is sun-drying so important?
Sun-drying (shai gan) preserves the enzymes and microorganisms naturally present on the leaf, which makes possible the slow fermentation that gives Pu'er its aging potential. Industrial high-temperature drying kills these elements and results in a tea that will no longer change. It is the difference between a living tea and a stagnant tea.
How long does it take to make a Pu'er?
For a raw Pu'er, the complete process, from plucking to the finished cake, takes about three to five days. For a fermented Pu'er, the pile fermentation (wo dui) must be added: 45 to 60 days on average, and 90 to 100 days in our case, before sorting the leaves and, possibly, compression. But in both cases, the tea is not really "finished" when it leaves the workshop: it is time that completes the work.
