How to Identify Authentic Pu-erh: A Buyer's Guide

Authentic pu-erh is made in Yunnan from large-leaf tea, and an honest cake tells you who made it, when, and whether it is raw or ripe. To check what you are buying, read the packaging (wrapper, nei fei, nei piao, batch details), brew the tea and judge it with your senses, and compare the price with what the claimed origin really costs. Most fakes are not "fake tea" at all. They are real tea sold under a more famous name, a false age or a false origin. This guide shows how to spot them.

What "authentic pu-erh" means

• Yunnan origin. Pu-erh is protected as a geographical-indication product, produced in specific areas of Yunnan. The main producing areas are Xishuangbanna, Pu'er City and Lincang. Tea made elsewhere and pressed into a cake may look similar, but it is not pu-erh.
• Large-leaf tea. Pu-erh is made from the large-leaf variety (Camellia sinensis var. assamica), sun-dried as maocha before pressing.
• Raw or ripe, clearly stated. Raw (sheng) pu-erh is pressed from sun-dried maocha and ages slowly over years. Ripe (shou) pu-erh is pile-fermented (wo dui) for about 45–60 days before pressing, a method developed in Yunnan in 1973. Both are authentic; a cake should tell you which it is.
• Honest claims about origin and age. A cake that names a village, a leaf source or a year should be able to back that up.

For background, start with Pu-erh Tea 101 and the main origins of pu-erh.

How mountain names get faked

The most common deception is a famous name on ordinary leaf. Pu-erh is often sold by village or mountain, and a few names carry high prices:

• Lao Ban Zhang on Bulang Mountain in Menghai County, often called the "King of raw pu-erh": strong and thick, with a pronounced bitterness that turns quickly to huigan and strong cha qi.
• Bingdao in Mengku, Lincang: known for rock-sugar sweetness and a floral, fruity aroma.
• Na Ka in Mengsong and Nannuo, also in Menghai County.
• Yiwu, east of the Lancang (Mekong) River, in the area of the classic Six Famous Tea Mountains: Youle, Gedeng, Yibang, Mangzhi, Manzhuan and Mansa. Yiwu tea is known as soft, smooth, sweet and mellow.

Each of these villages has a limited area of old-arbor gardens, and old-arbor trees yield little leaf, picked by hand, mostly in spring. Demand for the names is far larger than the harvest. So the reality check is simple: if a cake with "Lao Ban Zhang" or "Bingdao" printed large on the wrapper costs about the same as an everyday cake, it is almost certainly not leaf from that village. Leaf from nearby gardens, terrace bushes or a blend can be good tea, but you should pay for what it is.

Watch the wording too. "Lao Ban Zhang style", "Ban Zhang area" or "Bulang region" can be honest descriptions, or can be used to suggest more than the tea delivers. Ask the seller exactly where the leaf was picked.

Check the packaging

The wrapper

• Producer name and address, clearly printed.
• Raw or ripe stated.
• Production year, production date and batch number, often on the back of the wrapper, a label or the box.
• Clean, sharp printing. Blurry characters, misspellings or a design that differs from the producer's known wrapper for that year are warning signs.

Wrapper paper yellows somewhat with age, but light and handling yellow it too, and wrappers can be replaced. The wrapper is evidence, not proof.

Nei fei and nei piao

The nei fei (内飞) is a small ticket placed on the leaf before pressing, so it sits embedded in the surface of the cake. It usually carries the producer's name or mark. Because it is pressed in with the leaf, it is hard to swap later. A ticket that looks glued on top, or a cake with none where the producer normally uses one, deserves a closer look.

The nei piao (内票) is the inner description ticket, a loose slip tucked between the wrapper and the cake. It often describes the producer and the tea. It is easy to lose or replace, so read it together with the wrapper and nei fei.

Tong, box and batch

Cakes traditionally come in a bamboo-wrapped tong of seven, and tongs are packed in baskets or boxes. Labels on the outer packaging often repeat the production date and batch number. The dates on every layer should agree. A genuine producer can usually confirm a batch number if you send a photo of the packaging.

For more on reading dates, see how to tell the production year of a pu-erh cake.

Check the tea with your senses

The packaging tells you what the tea claims to be. The cup tells you whether it behaves like it. Use the five factors of the T/PCX 008—2026 tasting method: dry leaf, liquor color, aroma, taste and infused leaf. Brew with water just off the boil (100°C / 212°F), about 5–7 g in a 100–120 ml gaiwan, a quick rinse, then short infusions of 5–10 seconds.

• Dry leaf: evenly pressed, mostly whole leaf, plump and sturdy leaves. Young raw cakes are green to dark green, often with visible downy tips; ripe cakes are dark brown to nearly black. Excess dust, stems or a color that doesn't match the stated type and age are warning signs.
• Liquor color: clear and bright. Young raw: pale yellow to yellow. Aged raw: orange-yellow to orange-red. Ripe: orange-red to red, deep red or wine red. Cloudy liquor, or liquor far darker than the stated age, is a warning sign.
• Aroma: clean and pure. Floral or floral-honey in young raw tea; an aged aroma in older raw tea; mellow, aged, woody or sticky-rice aroma in ripe tea. Musty, sour, chemical or perfume-like smells are not normal.
• Taste: a famous-name raw cake should taste like its name. Lao Ban Zhang should be strong and thick, with bitterness that turns quickly to huigan. Yiwu should be soft and sweet. A thin, flat or harsh tea that collapses after two or three infusions is unlikely to be top old-arbor leaf.
• Infused leaf: soft, plump, mostly whole leaves of fairly even color. Lots of broken bits or very uneven color can point to mixed or low-grade leaf.

Our tasting standard explains each factor in detail, and our guide to good vs. poor pu-erh lists the signs to look for.

Buy from the producer when you can

Every step between the tea garden and your cup is a chance for leaf to be mixed, renamed or re-dated. Buying from the producer, or from a seller who buys directly from one, removes most of that risk. Before you buy an expensive cake, ask:

• Who made it, and where was the leaf picked?
• When was it pressed, and what is the batch number?
• How has it been stored since?
• Can I try a sample first?

A seller who can't answer these questions can't vouch for the tea.

Red flags

• A famous village name at an everyday price.
• No producer name, no date, no batch information.
• Dates that don't agree between wrapper, nei piao and box.
• Vague age claims ("very old", "decades aged") with nothing on the cake to support them.
• Dark tea labeled raw, or green tea labeled ripe.
• Musty, sour or chemical smells, fuzzy spots or visible mold. If you see mold, don't drink it.
• Liquor that looks dyed or unnaturally dark for the age claimed.

How we make our tea traceable

Chen Sheng Hao was founded in Menghai in 2007 by Shenghe Chen. We work under long-term agreements with the villages our teas are named after: a 30-year agreement with Lao Ban Zhang signed in 2008, with a first-processing workshop in the village; a 50-year agreement with Banpo Laozhai in Nannuo from 2011; and a 30-year agreement with Na Ka covering 2013–2042. Our factory uses no-ground-contact processing, our tea rests in climate-controlled warehouses, and our teas are China Green Food certified. Ask us where and when any of our teas was made. We make old-arbor tea, and we take the time to make it right.

To taste for yourself, start with our tea samples, or explore our single-origin teas.

This article is general information about tea, not medical advice. If you're pregnant, breastfeeding, taking medication or managing a health condition, please talk to your doctor before changing what you drink.