茶之制 · Processing

Processing

From the six tea categories to Longjing, rock tea, congou black tea, CTC and ripe pu-erh, trace how key operations shape a finished tea.

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Processing
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Processing is not a fixed recipe imposed on fresh leaf. This chapter begins with the six tea categories and then uses Longjing, Huangshan Maofeng, Liu’an Guapian, Taiping Houkui, Silver Needle, rock tea, congou black tea, CTC, Lapsang Souchong and ripe pu-erh to see how shared processing principles are realised under different raw-material and style goals[1][2].

Read each article across three connected layers: fresh leaf sets the material boundary; key operations alter leaf condition; drying, roasting or later treatment stabilises form and flavour. A stated parameter only makes sense with its cultivar, equipment, weather and quality target, rather than as an instruction to copy unchanged[2][3].

In this chapter

01

China's Six Tea Categories — An Overview

Green, white, yellow, oolong, black, dark — Chinese tea is classified not by colour or region but by craft, and at its heart lies the degree and manner of oxidation. One oxidation spectrum makes sense of all six.

10 min Oxidation spectrumProcess compareHistory of the system
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02

Congou vs. CTC Black Tea: Two Crafts, Two Characters

The same fully oxidised tea, made two very different ways—China’s whole-leaf congou and the modern CTC method that powers tea bags and milk tea.

10 min Interactive compareLayered reading
Read
03

The Craft of Longjing: How West Lake Dragon Well Is Made

From fresh leaf to flat, jade-green Dragon Well — spreading, pan-firing, resting and final shaping create one of China’s most celebrated green teas.

12 min Interactive processLayered reading
Read
04

The Craft of Silver Needle: How Baihao Yinzhen Is Made

Uncooked, unrolled, only withered and dried — yet Silver Needle demands extraordinary precision. See how 48–72 hours of gentle water loss transforms plump green buds into silvery, downy needles.

12 min Interactive processLayered reading
Read
05

The Craft of Lapsang Souchong: Birthplace of Black Tea

From Tongmu Pass pine-smoke roasting to modern smoke-free styles — how withering, rolling, oxidation and pine-wood firing create the world's first black tea.

14 min Interactive processLayered reading
Read
06

The Craft of Ripe Pu-erh: How Microbes Shape a Dark Tea

From Yunnan sun-dried raw tea to the deep-red, mellow cup of ripe pu-erh — wet piling harnesses microbes (Aspergillus niger, yeasts, bacteria) to transform polyphenols into theabrownins, creating a unique aged aroma and silky mouthfeel.

14 min Interactive processLayered reading
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07

The Craft of Wuyi Rock Tea: How Da Hong Pao Is Made

From bruising to roasting, discover how Wuyi rock oolong develops its "rock rhyme" and floral-fruity aroma through cycles of shaking, resting, and slow charcoal firing.

14 min Interactive processLayered reading
Read
08

The Craft of Keemun: China Signature Congou Black Tea

From Zhuye cultivar fresh leaf to the famed Keemun aroma — how withering, rolling, oxidation and two-stage drying create rose, honey and orchid fragrance in a cup.

14 min Interactive processLayered reading
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09

The Craft of Huangshan Maofeng: How a Hairy Peak Is Made

From fresh leaf to down-covered, peak-shaped Huangshan Maofeng — kill-green, light rolling and two-stage baking create the orchid fragrance and elegant form of this baked green tea.

11 min Interactive processLayered reading
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10

The Craft of Lu'an Guapian: How the Only Bud-Free Green Tea Is Made

China's only bud- and stem-free single-leaf green tea. Leaf-plucking, twin pan-firing, and high-heat charcoal baking create Lu'an Guapian's distinctive melon-seed shape and clear fire aroma.

14 min Interactive processLayered reading
Read
11

The Craft of Taiping Houkui: How Monkey King Tea Is Made

From fresh leaf to flat, straight, orchid-scented Houkui — kill-green, shaping, pinching and repeated baking create one of China''s most distinctive green teas.

14 min Interactive processLayered reading
Read
  • The Science — the chemistry and biology behind fixation, oxidation and pile-fermentation
  • Flavor — how craft becomes aroma and taste in the cup
  • Brewing — brewing strategies matched to different crafts

References

  1. Chen Zongmao (ed.). China Tea Dictionary. China Light Industry Press, 2000. — Comprehensive reference on tea classification by processing method and the six tea categories.
  2. Shi Zhaopeng (ed.). Tea Processing Science. China Agriculture Press. — Authoritative textbook on tea manufacturing techniques, kill-green, oxidation, and shaping methods.
  3. Wan Xiaochun. Tea Biochemistry (3rd ed.). China Agriculture Press, 2003. — Biochemical context for compositional change and quality formation during processing.

Editorial note

Later work will continue through key control points: raw-material suitability, hand versus mechanised processing, quality-fault clues, and how the same operation has different boundaries across tea types. New case studies will name their conditions and observation basis instead of presenting experiential ranges as universal formulas.