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: roast

Article · Health & Science

Why a Green Oolong and a Heavy Roast Never Want the Same Water

The brewing guide states the temperature bands by oxidation level. Here is the extraction chemistry, measured in real studies, that makes them true.

Jun 4, 2026 →
Guide · Oxidation & Roast

Oolong Oxidation and Roast

The two axes that define an oolong. What enzymatic oxidation is and how it is arrested by kill-green, why oolong sits partly oxidized between green and black, and how roasting is a separate step applied afterward.

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