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Tea Roasting: Techniques, Functions, Equipment & Top English Blogs

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The Ultimate Guide to Tea Fermentation Machines: Elevating Black and Oolong Tea Quality

The Ultimate Guide to Tea Fermentation Machines: Elevating Black and Oolong Tea Quality

2026-03-12 09:13:21

Learn how tea fermentation machines control temperature and humidity to perfect black and oolong tea. Discover the intelligent DELI ASSISTANT tea fermentation equipment for your tea factory.

The Ultimate Guide to Tea Rolling Machines: Boosting Quality & Efficiency

The Ultimate Guide to Tea Rolling Machines: Boosting Quality & Efficiency

2026-03-12 08:09:11

Discover how tea rolling machines enhance the flavor and appearance of your tea leaves. Learn about the rolling process and find the perfect DELI ASSISTANT tea rolling equipment for your factory.

DL-6CHBZ Chain Plate Tea Drying Machine: Multi-Fuel Efficiency for Tea Processing Plants

DL-6CHBZ Chain Plate Tea Drying Machine: Multi-Fuel Efficiency for Tea Processing Plants

2026-03-03 16:26:13

Explore the DL-6CHBZ Series Chain Plate Type Tea Drying Machine – multi-fuel (wood/coal/gas/electric) solution with 8-120m² drying area. Achieve 5-7% moisture content for high-quality tea efficiently.

DL-6CFX-40 Continuous Type Tea Winnowing Sorting Machine: Elevate Your Tea Quality Efficiently

DL-6CFX-40 Continuous Type Tea Winnowing Sorting Machine: Elevate Your Tea Quality Efficiently

2026-03-03 13:49:44

Discover the DL-6CFX-40 Continuous Type Tea Winnowing Sorting Machine – a high-capacity (500kg/h) solution for precise tea sorting. Elevate tea quality with efficient impurity removal and grading for tea processing plants.

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Quanzhou Deli Agroforestrial Machinery Co., Ltd.
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Tea Roasting: Techniques, Functions, Equipment & Top English Blogs

2025-10-27 11:20:08

1. Tea Types: Roasting Details & Functions

  • Green Tea: 80-90℃ (electric pan), 30-45mins; stir every 15mins to avoid scorching . Function: Inactivates polyphenol oxidase to retain grassy freshness and green hue.
  • Black Tea: 110-120℃ (gross fire, 15mins) → 85-95℃ (full fire, 10-20mins); cool 2hrs between stages . Function: Triggers theaflavin formation for rich, malty flavor.
  • Oolong (Yancha): Charcoal ashes heated 12hrs to white; 90-120℃, 4-36hrs (3 rounds max); flip every 30mins . Function: Develops "yan yun" (rock aroma) and reduces vegetal notes.
  • Pu’er: 60-70℃ (low-fire), 2-4hrs; spread 2cm thick . Function: Removes mustiness without destroying aging potential.
  • White Tea: 70-80℃, 1-2hrs; no stirring . Function: Preserves natural sweetness while evaporating excess moisture.

2. Core Functions

Evaporates 15-20% moisture (extends shelf life), inactivates enzymes (fixes flavor), and induces saccharification (adds sweetness) .

3. Equipment

  • Home: Purple Cloud Bamboo Roaster (110V, 30-120℃ adjustable, 500g batch) .
  • Commercial: Hondapack Rotary Roaster (electric/gas, ±1℃ precision, 50kg/batch); Delijx Gas Pot (20kg/batch, 360° heating) .

4. English Blogs

  • Valleybrook Tea: Step-by-step Wuyi oolong charcoal roasting .
  • Purple Cloud Tea House: Home roaster unboxing & troubleshooting .
  • Tea Epicure: Science of roasting (e.g., enzyme kinetics) .

5. Recommended English Books

  1. 《The Book of Coffee and Tea》(2nd Ed.)
    • Authors: Joel Schapira et al.
    • Publisher: St. Martin’s Griffin (1996)
    • ISBN: 9780312140991
    • Core: 313-page guide covering tea roasting techniques, flavor chemistry, and equipment .
  2. 《The Harney & Sons Guide to Tea》
    • Author: Michael Harney (Master Blender)
    • Publisher: Harney & Sons (272 pages)
    • Core: Roasting 工艺 for oolong/black tea, sensory evaluation methods .
  3. 《Tea Baby-Roasting Bible》
    • Source: hello-tea-baby.com (Free E-book)
    • License: Apache-2.0
    • Core: Home roasting tutorials for beginners (temp control, batch sizing) .