TeaFYI

Orthodox Processing

Industry & Trade

Định nghĩa

Traditional tea manufacturing that preserves leaf integrity through careful withering, rolling, oxidation control, and firing. Orthodox teas command premium prices due to their complexity, appearance, and multiple-infusion capability.

Chi tiết

Orthodox processing encompasses the traditional methods of tea manufacture that predate mechanization, though modern orthodox factories use machines that mimic hand techniques at scale. The process follows a strict sequence: plucking (selective hand-picking of the bud and two leaves), withering (12-18 hours on ventilated troughs to reduce moisture by 60-70%), rolling (twisting leaves to rupture cell walls and distribute enzymes), oxidation (resting rolled leaves in controlled temperature and humidity), and firing (hot-air drying at 80-90 C to halt oxidation and reduce moisture to 3-4%). Each step requires expertise: under-withered leaves produce flat, underdeveloped tea; over-rolled leaves become broken and release too much tannin; insufficient oxidation leaves astringent catechins unconverted; excessive firing scorches delicate aromatics. The result is a range of whole leaves, broken pieces, fannings, and dust, sorted into quality grades through mechanical sieving. Orthodox processing remains the standard for specialty and single-origin teas from Darjeeling, China, Taiwan, and Japan, where the full leaf carries terroir information that CTC processing destroys.

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