What is Pu’Erh, actually? A beginner’s guide that tries not to confuse you

“So, is it a green tea?”

Recently, a client asked us a simple question. What is Pu’Erh, exactly? Is it a green tea? I paused. The short answer came quickly enough. It’s a post-fermented tea from Yunnan. But I could already hear the follow-ups.

Really getting Pu’Erh takes more than one line. So here is the structured answer, in three parts: where Pu’Erh sits on the tea map, how it’s made, and how to actually enjoy it.

Part 1. Where Pu’Erh sits on the tea map

One word, three meanings

Pu’Erh (also written pu’er, puer or pu-erh) is a place, a tea and, depending on who you ask, a plant. No wonder people get lost.

The place first. The tea takes its name from the old trading town of Pu’er, today Ning’er in southern Yunnan, where leaves from the surrounding mountains were gathered and sold. Adding to the confusion, the prefecture around it was called Simao for decades and only became Pu’er City in 2007 (Wikipedia). Either way, the name tells you where the tea was traded, not where it grew. Much of the best Pu’Erh comes from mountains outside Pu’er City altogether, as we’ll see below.

Then the plant. Some Chinese botanists even call the big-leaf tea variety, Camellia sinensis var. assamica, “Pu’Erh tea” (Pu’er cha). It’s the same species as every other tea, just a large-leaved variety that grows into real trees. Which means you can make a red tea from a “Pu’Erh plant” that isn’t Pu’Erh tea at all. Our Black Peanuts, a Red (Black) Tea from Jingmai, is exactly that.

What the official definition really says

China’s national standard (GB/T 22111-2008) defines Pu’Erh in one long sentence. Loosely translated, it’s tea made from Yunnan big-leaf sun-dried green tea, within the protected geographical area, using specific processing, with distinctive quality. Every word in there matters, so let’s unpack them. We’ll keep it short here, since Part 2 covers more details.

Yunnan. Pu’Erh is a protected geographical indication, a bit like Champagne. Leaves from elsewhere, however they are processed, are not Pu’Erh under this standard.

Big-leaf variety (Dayezhong). The standard asks for big-leaf tea plants. Reality is messier. Some celebrated Pu’Erh mountains grow medium and small-leaved trees, like the famous Cat’s Ear (Maoerduo) of Yibang, or the smaller-leaf trees of Jingmai. Whether they are local variations of big-leaf stock or seeds brought in long ago is still argued about over many cups.

Sun-dried green tea (Shaiqing). The leaf is fixed, rolled and dried in the sun. The result is called rough tea (maocha), the raw material for every Pu’Erh.

Raw and ripe. The standard recognises exactly two types, Sheng (Raw) Pu’Erh and Shou (Cooked) Pu’Erh Tea. And here’s a fun technicality. On paper, Sheng only counts as Pu’Erh once it’s been steamed and pressed into a cake, brick or nest (tuo). Loose Sheng is, strictly speaking, just sun-dried green tea. In daily life, everyone still calls it Pu’Erh, us included.

Where it grows

Most Pu’Erh comes from three classic regions along the Lancang river, the upper Mekong, in southern Yunnan. Xishuangbanna is home to mountains like Nannuo and Youle (Jinuo), where our Orchard Drizzle and Last Hunter grow. Pu’er City holds Jingmai, whose old tea forests became the world’s first tea-themed UNESCO World Heritage site in 2023 (UNESCO), and where our Tiger Balm comes from. Lincang, further west, is the home of famous villages like Bingdao and Xigui. Each region, and often each village, has its own accent. That’s a big part of why this Yunnan tea gets people hooked.

Part 2. How it’s made, and is it a green tea?

From leaf to cake

Every Pu’Erh starts the same way. Fresh leaves are spread out to soften, fixed in a hot wok to stop most of the browning (shaqing), rolled, then dried in the sun. At least in principle. In practice, many producers dry the leaves under a glass or plastic roof, and on rainy days some leaves end up dried in the shade or indoors. Either way, the result is maocha.

From there, the road splits. For Sheng, the maocha is already drinkable as it is. It can be enjoyed loose or pressed into a cake, and drunk young or left to age. For Shou, it first goes through pile fermentation (wodui). The leaves are heaped up, moistened and turned for weeks while microbes do their work, a bit like ageing cheese, but with tea leaves. Pile fermentation is a relatively young method. Yunnan producers learned it from Guangdong, started producing Shou with it in 1973, and spent the following years experimenting and adjusting it to local conditions. Fermented teas existed in Yunnan long before that, just not in such a standardised way (Global Tea Hut, 2017).

So, green tea or dark tea?

China sorts tea into six families by how it’s processed: green, yellow, white, oolong, red (black) and dark. Pu’Erh doesn’t fit neatly into any of them, which is exactly why our client’s question was a good one.

Shou is the easy part. Its microbial pile fermentation puts it squarely with Dark Tea (heicha), alongside Liubao from Guangxi or Fu brick from Hunan and Shaanxi (Beverage Plant Research, 2026).

Sheng is trickier. Even a super fresh Sheng doesn’t really look or taste like a green tea. Yet on paper, its base is a sun-dried green tea, and many Chinese experts would file young Sheng under green tea. The difference starts with the fixing. Green tea is fixed hot and fast, then dried with heat, to shut down the leaf’s oxidising enzymes as completely as possible. Sheng’s maocha is usually fixed in bigger batches at lower heat, then dried slowly. Less heat means the leaf isn’t fully “locked”, so it keeps changing for years. A green tea mostly just fades.

So the honest answer for our client is this. Young Sheng is a sun-dried green tea with a future. Shou is a dark tea. And plenty of people in Yunnan would rather Pu’Erh had a category of its own.

Wait, Sheng is post-fermented too?

Yes. In tea, “post-fermentation” means the transformation the leaf goes through after the maocha is made. Microbes, enzymes, moisture, heat and oxygen rework its chemistry, and with it the tea’s colour, aroma and taste. Shou gets this in weeks, in a hot pile. Sheng gets it over years, quietly, in the cake. Researchers are still mapping who does what, but the direction is clear. The compounds behind young Sheng’s bitterness and astringency decline, while those behind a mellower taste and deeper colour build up (Zhou et al., 2026). That brings aged Sheng closer to Shou, but never to the same tea. Even a 20-year-old Sheng still tastes vastly different from a Shou.

One myth to drop

You might read online that Pu’Erh is the only tea that improves with age. Two things are off there. First, it’s far from the only one. Many dark teas and white teas age beautifully too. Our Golden Loaf, a Fu brick from 2018, and Grandma’s Cure, a White Tea from 2013, are good places to taste it. Second, we wouldn’t say tea “improves” with age. Young and aged Sheng are simply different characters.

So where does “older is better” come from? In the mid-1990s, Taiwanese merchants and tea lovers started judging Pu’Erh by its age, and aged stocks from Hong Kong warehouses were sold off to them around the 1997 handover (Yu, IIAS). The craze spread back to Hong Kong, Guangdong and Yunnan. Prices soared in the early 2000s, then roughly halved when the market crashed in 2007 (The Walrus). For a few years, cakes were bought like shares rather than tea.

Part 3. Actually drinking it

Fresh Sheng, aged Sheng

A fresh Sheng is all brightness, with fruit, flowers, green energy, sometimes a bitter kick. Give it years in a cake and it changes on every front. Bitterness and astringency soften into a mellow sweetness. The liquor turns from yellow-green to orange-red. The taste grows rounder and more balanced. And the aroma travels from fresh and floral to fruity and sweet, then on to aged notes of wood and camphor. Our 2018 and 2020 Dry Season in NanNuo come from the same old trees as our 2025 Orchard Drizzle. Brew them side by side and you’ll taste time.

Why Sheng can feel hard at first

Let’s be honest. Sheng isn’t the easiest tea for a beginner. Made from tired plantation leaves, it can be harsh, bitter and drying, and that astringency just sits on your tongue.

Good Sheng from old trees, ancient tree (gushu) or at least big tree (dashu), is another story. There’s no legal definition of either, so trust the seller more than the label. These leaves give thicker, more layered cups, and their bitterness turns into returning sweetness (huigan), that cool, sweet feeling rising from your throat a few seconds after you swallow. Once you’ve felt it, it’s hard to go back. That’s what high-quality tea means to us. Not a fancy box, but a leaf that pays you back.

The tea energy

In our first post, we looked at how caffeine and L-theanine team up to create that clear, calm high. Pu’Erh is a caffeinated tea like any other, but fresh Sheng from big or old trees is, in our experience, some of the most potent tea energy (chaqi) you can find. Light-headed, warm, wide awake. Brew it in a gaiwan with short infusions and go slow.

You’ll also find plenty of bold claims online about Pu-erh tea benefits for your health. We’d rather stick to what you can feel in the cup. It’s a natural, energising tea, and a non-alcoholic beverage that actually does something.

Where to start in our collection

Pu’Erh is better experienced than explained. Grab a gaiwan or a Chinese tea set, pick one of the teas above in our shop, or come find us at our next pop-up. We’ll pour.

References

  1. Standardization Administration of China. GB/T 22111-2008, Product of geographical indication: Pu’er tea. Definition, types and processing of Pu’Erh.
  2. UNESCO World Heritage Centre. Cultural Landscape of Old Tea Forests of the Jingmai Mountain in Pu’er, inscribed 2023.
  3. Global Tea Hut. Article on the origins of wet-pile fermentation, November 2017 issue. How Yunnan producers learned the technique from Guangdong and began production in 1973.
  4. Zhou M, Chen X, et al. Quality evolution of Pu-erh raw tea over 1–22 years of aging. Foods. 2026;15(19):3448. How Sheng changes during ageing, and what drives it.
  5. Advances in the chemical composition and fermentation control of dark tea. Beverage Plant Research. 2026;6:e021. Dark tea family, including Liubao and Fu brick.
  6. Wikipedia. Pu’er tea. Naming history of Pu’er and Pu’er City.
  7. Yu SD. The globalization of chennian and qingxiang. The Newsletter, International Institute for Asian Studies. How Taiwan made age the measure of Pu’Erh in the 1990s.
  8. Aziz A. The big steep: why are people investing in pu-erh tea? The Walrus. The 2000s Pu’Erh boom and the 2007 crash.

0 comments

Leave a comment