Yunnan Da Ye Zhong vs Menghai Da Ye vs Yunkang 10
The plant material behind pu-erh, and the distinction that the ‘old arbour against plantation’ argument is actually about. One is a mixed old population, one is the selected large-leaf stock of the manufacturing heartland, and one is the high-yielding clone planted on terraces from the 1980s.
What is being compared
Why these get confused
‘Da Ye Zhong’ is a description — large-leaf type — used both as a general term for Yunnan assamica and as a specific stock name. Reading it as a single named cultivar leads to a lot of confusion on wrappers.
Point by point
| Aspect | Yunnan Da Ye Zhong | Menghai Da Ye | Yunkang 10 |
|---|---|---|---|
| What it is | The large-leaf assamica population of Yunnan, including old unpruned trees. | The large-leaf stock of the Menghai area. | A clonal cultivar planted extensively on terraced plantation land. |
| Genetic uniformity | Low — a population rather than a clone. | Moderate. | High. |
| What it makes | Sheng and shou pu-erh, and a notably sweet thick black tea when fully oxidised. | Most modern shou pu-erh and a great deal of sheng. | Most inexpensive sheng and shou, and much Dian Hong. |
| Why the chemistry matters | High in the compounds that make young sheng bitter and later provide the substance for ageing. | High polyphenol content is what allows wet-piling to work and what gives young sheng its bitterness. | Bred for yield; the ageing argument is correspondingly weaker. |
| Age claims | Gu shu material from old trees is the basis of the most expensive sheng, and the age claims are largely unverifiable by a buyer. | Less often the subject of tree-age claims. | Not applicable — the plantings are dated. |
| What it is called in marketing | ‘Old arbour’, ‘gu shu’, ‘ancient tree’. | Usually just the region. | ‘Plantation’, and used as the negative term in the comparison. |
The short answer
The usual contrast drawn between plantation and old-arbour pu-erh is largely a contrast between Yunkang 10 and mixed old seed-grown stock. Ageing potential is credited to storage and belongs at least as much to the plant: small-leaf stock does not age the same way.
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