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THE ORDER OF THE SEVENTH STEEP SEMPER PARTIM OXIDATUM The Order of the Seventh Steep
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OOLONG
Semper Partim Oxidatum Always partly oxidized
A Curio

Honey Orchid to Duck Shit, and Whether the Names Are Real

These Chinese oolongs, the Phoenix Dancong family, are named for a smell, not a place, and nothing is added to the leaf. Gas chromatography has now checked whether a bush named for one scent really carries different chemistry from the next. Mostly it does, but the lab draws fewer lines than the menu.

5 min read6 sources

Phoenix Dancong oolong is sold under names that describe a smell, not a place. Mi Lan Xiang, honey orchid. Ya Shi Xiang, duck shit. Others promise almond, magnolia, orchid. Nothing is added to earn those names: no honey, no flower, and certainly no manure ever touches the leaf. So a buyer is right to ask the blunt question. Does a bush named "honey orchid" actually carry different chemistry from one named "almond," or is the whole fragrant menu just poetry?

The short answer, from a gas chromatograph rather than a taster's nose: the names are real, but the menu draws finer lines than the chemistry will certify. A machine that has never read a tea list can still sort one named fragrance from another by the compounds coming off the cup. It just files the ten famous names into about four broad families, not ten.

Terraced tea garden rows climbing a misty green hillside above a village, with forested mountains behind
Terraced tea gardens climbing a hillside in southern China, the kind of steep, cultivated mountain slope Fenghuang's dancong bushes grow on.jason hu

Why the names exist at all

Dancong means single bush, and the word is really a claim about ancestry. Each name marks a distinct cultivar, first chosen on Fenghuang mountain above Chaozhou, in Guangdong, for a scent no neighbouring bush produced, then cloned by cutting so that scent breeds true. Seed-grown tea plants recombine their parents' traits and drift; a cutting is a clone, identical to the mother bush down to whatever gene combination made her smell like honey rather than jasmine. The scent comes from the bush's own chemistry, nothing added, and cloning is what keeps that chemistry from blending back into the crowd. That is how a tea ends up named for a flower it never touched (Tea Drunk1). The honey-orchid line makes the mechanism concrete rather than theoretical: its original mother bush died in 1978 at 450 years old, and nearly every Mi Lan Xiang dancong sold today descends from cuttings of that one plant, not from a different bush that merely tastes similar (Sina News6).

What the chemistry actually found

Here the folk tradition holds up better than a skeptic might expect. In 2020, researchers ran nine of the named types through gas chromatography-mass spectrometry, a method that traps and identifies the compounds evaporating off a brewed leaf, and found exactly the terpene family a nose would predict: linalool, geraniol, and their close relatives forming the floral-honey backbone the whole category shares (PLOS ONE4). A larger 2023 study pushed all ten canonical names through the same kind of analysis and isolated twenty aroma-active compounds that actually separate one named type from another (Food Research International5). Put plainly: a machine that has never tasted tea can tell a honey-orchid batch from a cinnamon batch by what comes off the cup, and the compounds doing the work are the same terpenes a nose ties to a real orchid or real cinnamon bark. The names are not decoration.

Do not oversell it, though. The 2020 team also ran a cluster analysis on their nine types, and the chemistry collapsed them into only four broader families, with some pairs scoring as much as 95.94 percent alike. A palate trained on three centuries of naming is still drawing distinctions finer than the lab will sign off on. The chemistry is real and measurable, coarser than the folk taxonomy in some places, and finer than a skeptic's dismissal in others.

Close-up of twisted, dark oxidized oolong tea leaves
Finished oolong leaf, twisted and dark from oxidation and firing. The floral or fruity scent is entirely in the leaf itself; nothing is added.Dayou Lu

The one name everyone remembers

The most notorious of the ten earns its scandal from a story, not the leaf. Ya Shi Xiang, duck shit aroma, is most often traced to a grower who, to stop rivals stealing cuttings of a superior bush, told outsiders that the rich colour of his soil came from heavy applications of duck manure. The name meant to disgust instead stuck as a badge. Officials later filed the tea under the more decorous Yin Hua Xiang, silver flower, but buyers kept asking for duck shit by name, and the folk label never lost ground (Path of Cha2; Jing Tea Shop3). Treat the anecdote as folklore, not settled history: no primary record fixes the grower or the year. What is not in doubt is that the bush is real and the aroma distinct enough that the undignified name survived every attempt to replace it.

A green ceramic gaiwan beside a small poured cup of brewed tea
A gaiwan and a poured cup. A dancong's named fragrance is meant to be judged here, in the liquor, not on the label.Arseniy Kapran

What a dancong name promises, and what it does not

None of the names is regulated the way a wine appellation is. Anyone can print Mi Lan Xiang on a bag; the name says what the grower intends the cultivar to taste like, not that a laboratory has checked this particular pouch. The chemistry above tells you the underlying idea is sound, real bushes really do carry distinct, inheritable scent, not that any specific bag delivers it. So buy dancong from a seller who names the cultivar and, better still, the garden or the elevation. Then let the cup, not the label, make the case.

For where these cultivars grow and how Fenghuang differs from Wuyi and Anxi, see Oolong Regions and Origins; for how oxidation and roast decide the rest of an oolong's character, see What Is Oolong Tea; for the range's own founding legend and documented history, see The History of Oolong.

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