email

One Of Factors For Black Tea Sourness: Withering

Home > News > Tea Industry NewsOne Of Factors For Black Tea Sourness: Withering

Hot Products

news

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.

Revolutionize Tea Processing: Introducing the DQM-150 Continuous Matcha Ball Mill

Revolutionize Tea Processing: Introducing the DQM-150 Continuous Matcha Ball Mill

2026-06-04 09:20:55

Discover the DQM-150 Continuous Tea Ball Mill. Achieve up to 2500 mesh superfine tea powder with non-stop operation, water-cooling technology, and a 15-30kg/h output.

Powers the Future of Tea Production at the 8th China International Tea Expo

Powers the Future of Tea Production at the 8th China International Tea Expo

2026-05-26 16:54:41

Tea processing equipment, tea processing machinery, automated tea machinery, China International Tea Expo, tea roasting machine, tea factory automation, Hangzhou tea expo 2026.

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

One Of Factors For Black Tea Sourness: Withering

2022-02-18 15:38:47

Tea withering is the first step in the production of black tea, this process is to allow the moisture contained in the tea to evaporate. After the fresh leaves of black tea are picked, they need to be aired in time, so that the tea leaves start to lose water continuously. During this period, the inside of the tea leaves is constantly undergoing wonderful reactions.

When black tea withering, it is necessary to strictly control the length of time for fresh leaves to lose water. Too fast or too slow will have an irreversible impact on the quality of black tea.

And also strictly control the thickness of the tea spread. Black tea withering pays attention to thin stalls, and thin stalls can limit the tea leaves in a sultry environment, so as to prevent the fresh leaves of tea from being suffocated, resulting in a green and sour taste.

Therefore, moderate withering is very important.

Currently our company provides two types of equipment for black tea withering.

The first is natural withering through a tea withering tray. The withering plate is made of natural top layer bamboo skin, which is pure natural and pollution-free. If your processing is a small-scale processing, then put 2.5kg of fresh leaves on each green plate, and at the same time have a well-ventilated environment and the temperature is suitable, you can naturally wither for a long time.

Second, we offer electrically heated withering equipment. Compared with naturally withered tea leaves, the withering speed of the tea withering machine is faster, and the withering environment is not affected by the natural environment. It is especially suitable for tea processing in medium and large tea factories. Speed up the withering speed of black tea and reduce the loss of fresh leaves caused by untimely withering.