email

How Is The Unique Fragrance Of Black Tea Produced?

Home > News > Tea Industry NewsHow Is The Unique Fragrance Of Black Tea Produced?

Hot Products

news

Premium Black Gold Stone Matcha Mill Grinder for Cafes and Tea Shops

Premium Black Gold Stone Matcha Mill Grinder for Cafes and Tea Shops

2026-06-26 16:42:22

Introducing our premium black gold stone matcha mill grinder, designed for finer grinding, lower milling temperature, and live matcha powder demonstrations in cafes and tea shops.

New Granite Matcha Stone Mill Grinder for Low-Temperature Green Tea Powder Milling

New Granite Matcha Stone Mill Grinder for Low-Temperature Green Tea Powder Milling

2026-06-26 15:57:46

Discover our newly developed granite matcha stone mill grinder, designed for low-temperature milling to preserve matcha’s vivid green color, aroma, and freshness.

2026 Hangzhou Tea Expo | Continuous 2500 Mesh Tea Ball Mill & Stone Grinders

2026 Hangzhou Tea Expo | Continuous 2500 Mesh Tea Ball Mill & Stone Grinders

2026-06-13 17:27:22

Meet us at the 8th China International Tea Expo 2026 in Hangzhou. We showcase continuous 2500 mesh ball mill line, stainless steel ball mill, bluestone stone mill, black stone mill for premium matcha and tea powder production. Low-temperature, high-fineness, food-grade quality.

The Ultimate Guide to Tencha Processing: Inside a Fully Automated Production Line

The Ultimate Guide to Tencha Processing: Inside a Fully Automated Production Line

2026-06-10 15:53:34

Discover the complete 12-step automated tencha processing line. Learn how Quanzhou Deli Agroforestrial Machinery engineers premium equipment for steaming, baking, and stem separation to produce top-tier matcha raw materials.

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 : 0086-17750811550

How Is The Unique Fragrance Of Black Tea Produced?

2021-07-29 15:52:16

The essence of black tea fermentation is that the fresh leaf cell tissue is damaged. To be precise, the semipermeable vacuole membrane is damaged. Polyphenols can come into contact with endogenous oxidases, causing the enzymatic oxidative polymerization of polyphenols. The role of theaflavin, thearubin and other colored substances. At the same time, the coupling produces a series of chemical reactions of the contained substances, thereby forming the unique aroma substances of black tea. Black tea fermentation is neither microbial fermentation nor simple chemical oxidation, but relies on the enzymatic oxidation of endogenous enzymes in fresh leaves.

Fermentation is the key process of making black tea. Without tea fermentation, the quality characteristics of black tea cannot be formed. If fermentation is abnormal, the quality of black tea will decrease.

During the fermentation process, various internal components have undergone profound changes, such as the oxidation of polyphenols, the destruction of chlorophyll, the hydrolysis of proteins and carbohydrates, and the changes in aromatic substances, among which the most important influence on the quality of black tea Is the oxidation of polyphenols.

The substances contained in tea are gradually transformed during the fermentation process, making the unique aroma of black tea gradually appear in the production.