Tea Lab

The History: The Ancient Tea Horse Road

Sheng Pu-erh (Raw Pu-erh) is one of the oldest types of tea in the world, originating in the Yunnan province of China. Its history is inseparable from the Ancient Tea Horse Road, a treacherous network of trails through the Himalayas where tea was traded for Tibetan horses.

During the months-long journeys on horseback, the tea (compressed into cakes for easier transport) would naturally ferment and age. Traders discovered that the tea actually tasted better after being exposed to the mountain air and humidity. This gave birth to the concept of aged tea, which is now a multi-billion dollar collector’s market.


Geography: The Ancient Trees of Yunnan

Sheng Pu-erh is a “Geographical Indication” tea—it can only be produced in certain regions of Yunnan. The terroir is defined by altitude and the age of the trees.

1. The Regions

2. Tree Types


Decoding the Grades & Aging

Sheng Pu-erh is unique because it is “living” tea that changes over time.

1. New vs. Aged

2. Compression Shapes


How to Identify Quality

Evaluating Sheng Pu-erh requires looking at both the dry leaf and the “Cha Qi” (energy).

FeatureHigh-Quality (Premium)Lower-Quality (Mass Market)
AppearanceLarge, intact leaves with visible silvery buds; clear compression.Broken leaves, dust, or “yellow flakes” (Laohuangpian).
AromaFresh forest, stone fruit, honey, or smoky (if traditional).Musty, pond-y, or like wet cardboard.
LiquorClear gold (Young) or Amber (Aged); oily texture.Cloudy, dull, or dark brown (if not aged).
Taste“Ku Wei” (pleasant bitterness) that turns into “Huigan” (sweetness).Harsh, permanent bitterness that coats the tongue.

Reputable Brands & Where to Buy

The Pu-erh market is filled with fakes and mislabeled “Ancient Tree” tea. Stick to reputable vendors who specialize in Yunnan sourcing.

Reputable Specialized Brands:


Sheng Pu-erh is a lifelong journey. For beginners, try a high-quality blend from a reputable factory or a young Gushu sample to experience the “energy” of Yunnan’s ancient forests.