email

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

Home > News > Tea Industry NewsTea Roasting: Techniques, Functions, Equipment & Top English Blogs

Hot Products

news

Elevate Your Tea Production with the DL-6CYMJ-32 Electric Stone Matcha Mill

Elevate Your Tea Production with the DL-6CYMJ-32 Electric Stone Matcha Mill

2026-02-09 15:57:31

Capitalize on the global matcha boom with our new DL-6CYMJ-32 Black Gold Stone Grinder. Featuring a traditional 35cm stone mill and precise low-speed rotation (0-38 rpm), this machine produces ultra-fine ($\le$ 0.15$\mu$m) matcha while preserving vibrant color and rich nutrients. Perfect for high-end tea factories.

From Factory to Field: The Journey of the Backpack Battery Tea Harvester & Usage Guide

From Factory to Field: The Journey of the Backpack Battery Tea Harvester & Usage Guide

2026-01-30 16:05:25

Discover the journey of our electric backpack tea harvester from the manufacturing line to your plantation. Learn essential usage tips, safety precautions, and maintenance advice to maximize your harvest efficiency.

Is Your Tea Garden Ready for the Spring Harvest Rush? Don't Let Labor Shortages Cut Your Profits

Is Your Tea Garden Ready for the Spring Harvest Rush? Don't Let Labor Shortages Cut Your Profits

2026-01-29 10:32:59

Facing labor shortages for the spring tea harvest? Discover Deli Assistant's battery-operated tea harvesting machines. Lightweight, efficient, and gentle on premium tea buds. Boost your yield today.

Scaling Up Matcha Production: High-Capacity Stainless Steel Ball Mills (500-800 Mesh)

Scaling Up Matcha Production: High-Capacity Stainless Steel Ball Mills (500-800 Mesh)

2026-01-21 14:29:12

Need higher output than stone mills? The DL-6QM-40 Stainless Steel Ball Mill delivers industrial capacity (15-40kg/h) at 500-800 mesh ultra-fine quality. Learn how to pair it with a Circular Vibration Sieve for the perfect matcha production line.

Contact us

Quanzhou Deli Agroforestrial Machinery Co., Ltd.
If you want know more about our products, please send email to us : info@delijx.com. You also can send message to our WeChat or WhatsApp : 0086-18120033767

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) .