Est. 1956 · The Order The independent guide to oolong: the partly oxidized teas, and how to brew them. Oolong.biz
THE ORDER OF THE SEVENTH STEEP SEMPER PARTIM OXIDATUM The Order of the Seventh Steep
The Order of the Seventh Steep
OOLONG
Semper Partim Oxidatum Always partly oxidized

Tagged: wuyi

Article · science

The Rock in Rock Tea May Not Be Where the Flavor Comes From

A 2025 study went looking for what makes Wuyi's priciest rock-zone tea taste different and found soil minerals alone could not explain it. The strongest match was a lichen-forming, rock-weathering fungus and a photosynthesizing bacterium, and even the scientists who found them will not call it proven.

Jul 24, 2026
Article · Oxidation & Roast

A Rainy Pick Day Caps a Rock Tea's Aroma, and No Roast Recovers It

A 2025 GC-MS study found rainy-day-picked Wuyi rock tea carries 40 to 74 percent less floral and fruity aroma compound than sunny-day leaf, and processing cannot fully make up the deficit.

Jul 19, 2026
Article · history

The Spy Sent to Steal a Secret He Had Already Proven

In 1848 the East India Company sent a disguised botanist into the same Wuyi cliffs this site calls home, hoping to break China's grip on tea. He had already spent years proving green tea and black tea come from one plant; what Wuyi's closed factories still held was the plants and the method, and he shipped cuttings toward the Himalayan gardens meant to rival Wuyi itself, though the plant behind India's biggest tea region was never his to take.

Jul 14, 2026
Article · Regions & Origin

Both Tieguanyin origin legends fail the record; a cutting explains the tea

Tieguanyin carries two competing origin stories, a farmer's dream and a scholar's gift to an emperor. Chinese tea scholarship itself has already ruled on which one holds up, and the real, documented history is stranger than either.

Jun 24, 2026
Article · Oxidation & Roast

A charcoal roast is a sequence of fires, rested months apart

Charcoal roasting is a sequence of separate fires, not one step, and each fire does distinct, measurable chemistry to the leaf. The practice also varies more across oolong styles than most tea copy admits.

Jun 10, 2026
Article · business-trade

Zhengyan is a mapped 70-square-kilometer zone the law does not protect

Zhengyan is a mapped 70-square-kilometer zone inside the Wuyi Mountain reserve, not a marketing word, but China's national standard for Wuyi rock tea protects the whole administrative city instead, leaving the boundary that commands the real price premium enforced by nothing but reputation.

May 28, 2026
Article · Brewing & Gongfu

Gongfu Cha Was Never a Ceremony

The word means skill, not ritual. What Chaoshan does at the table, who styled it into a performance, and who built a two-thousand-seat theater around it.

May 14, 2026
Article · business-trade

No one has legally picked a Da Hong Pao mother tree since 2006

The six original Da Hong Pao mother bushes have not been legally picked since 2006, so every bag sold under that name since is a cutting-propagated stand-in, priced against an original that left the market for good.

May 7, 2026
Article · Regions & Origin

Why Wuyi's Rock-Tea Gardens Are Growing Soybeans, Not More Tea

A 2018 law froze the total tea garden area inside Wuyishan National Park. What growers do instead of expanding is plant soybeans in summer and rapeseed in winter, straight through the tea rows, and the results are now measured.

Apr 30, 2026
Article · Regions & Origin

Two Fujian Counties Still Argue Over Who Invented Oolong

Wuyi has the older paper trail, and scholars dispute what tea it actually describes. Anxi has the founding legend, dated to three different centuries depending on who tells it. Neither county can prove which one first stopped oxidation partway and built the category.

Apr 3, 2026
Guide · Regions & Origin

Oolong and Geographical Indication

A protected name is not a quality grade. What geographical-indication protection actually certifies for Wuyi yancha, Anxi Tieguanyin, and Phoenix Dancong, why Taiwan's oolongs sit outside that system entirely, and why an American shop can sell fake "Tieguanyin" legally, not because no protection exists, but because none of the four names has ever filed for the one the US offers.

Guide · Regions & Origin

Oolong Grades and Cultivars

Oolong carries four different things called a grade: a national sensory tier, a government cultivar registration, a trade aroma-type name, and a competition award. The canonical account of what each one actually certifies, and what it does not.

Guide · Regions & Origin

The History of Oolong

Oolong was not invented once. Two Fujian counties still dispute the original break from green tea, Guangdong's Phoenix mountains claim a separate and older founding legend, Taiwan received the method by migration a century later, and the word "oolong" itself only reached print in the 1850s. The documented record, region by region.

Guide · Regions & Origin

Oolong Regions and Origins

The canonical geography of oolong across its four classic origins: the Wuyi cliffs and Anxi in Fujian, the Phoenix mountains of Guangdong, and the high mountains of Taiwan, with the terroir, cultivars, and elevations that separate them.

Guide · Regions & Origin

Yancha, Wuyi Rock Tea

Yancha is the oxidized, charcoal-fired oolong of the Wuyi cliffs, defined by the mineral yan yun and sorted by the state into five official categories. The canonical account of what it is, how it is classified and graded, how it is made, and the documented history from Tang-dynasty tribute leaf to today's regulation.