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: gaoshan

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 · Regions & Origin

Gaoshan and the Clampdown

A gaoshan oolong is grown above 1,000 meters, in fog that slows the bush and concentrates the cup. Taiwan has also spent two decades tearing illegal gardens off the slopes above that line. Here is how the tea is actually grown, and why the government keeps pulling gardens off the mountain.

Jun 10, 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

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 · Basics

What Is Oolong Tea

Oolong is partly oxidized Camellia sinensis, made to a chosen point between green and black. This is the canonical account of what it is, how it is made, the major style families, how it tastes across the spectrum, and why it is brewed gongfu.