Yan yun
The evaluative category specific to Wuyi rock oolong: the quality attributed to tea grown on the cliffs rather than around them.
Yan yun is the term Wuyi producers and buyers use for the character that distinguishes zheng yan tea — grown within the core cliff area — from tea of the same cultivar and processing grown on the surrounding flatter land. It bundles a mineral impression, a particular depth in the throat and a persistence in the finish into one word, and it functions commercially as well as descriptively: a tea said to have yan yun commands a different price. Recording it as a tradition-specific evaluative category rather than as a flavour note is important here for a reason that is not only linguistic. The claim inside the term is a terroir claim, and terroir claims in tea are routinely asserted and rarely demonstrated. TeaHQ can say the category exists, that it is used as a criterion, and what it is used to distinguish. It does not assert that the cliffs cause it.
Which sense this is
Finish and throat. What happens after swallowing. Includes evaluative categories from Chinese tea assessment that have no equivalent term in European sensory language.
Tradition-specific category. A category belonging to one tradition of tea assessment, with no equivalent term elsewhere. Recorded on its own terms rather than translated into one.
Whose category this is. Wuyi yancha assessment, where it distinguishes zheng yan material from tea grown outside the core area and is priced accordingly.
Where it comes from
- Observed, cause unsettled
Attributed within the tradition to the mineral soils and microclimate of the cliff area. The attribution is standard, is also a commercial argument, and is not something TeaHQ can demonstrate. Recorded as an attribution rather than as a cause.
Reliably observed and not explained. Recorded as unexplained rather than given a mechanism it has not earned.
Types: type-oolong-tea.
- Processing step
Heavy charcoal roasting and resting between roasts are part of what the finished character is judged on, so the term is never assessing growing conditions alone.
A named production step reliably produces it. A statement about practice, not about chemistry.
Processing: process-charcoal-roasting, processing-s32-roast-resting. Types: type-oolong-tea.
Not to be confused with
- Mineral (Aroma) — Wet stone and slate — a widely used descriptor for something that has no smell, which is worth being honest about.
What gets said that is not right
That it is a synonym for a mineral flavour. The mineral impression is part of it; the term also carries claims about depth, persistence and provenance that a flavour note does not.
Nearby
A tasting note is a comparison, not a measurement. Where the route from leaf to sensation is established it is labelled as such above; where it is not, the page says so rather than supplying a mechanism the descriptor has not earned. See the rest of the vocabulary for how the axes divide up.