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How does the black tea withering process work?

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China Distinguish Black Tea By Nose And Mouth manufacturer

Distinguish Black Tea By Nose And Mouth

2021-02-25 15:31:20

That is, the human sense of smell is used to distinguish whether black tea has smoke, sour, stale, musty, sun-dried and other odors. The dry tea of high-quality black tea has a sweet fragrance, and will have a sweet and pleasant aroma after brewing, while

China Using Hands And Eyes To Distinguish Black Tea manufacturer

Using Hands And Eyes To Distinguish Black Tea

2021-02-25 14:46:08

First, feel the weight, tightness and thickness of the black tea cords with your hands. The cords of high-quality black tea are relatively tight, and the one that is heavy is better, and the one that is rough and light is worse. The main purpose of touchi

China Famous Black Tea Varieties In The World(2) manufacturer

Famous Black Tea Varieties In The World(2)

2021-02-19 16:08:40

Ceylon Heights black tea is most famous for Uwo tea, which is produced on the east side of the mountainous area of Sri Lanka and is one of the four major black teas in the world. The east side of Sri Lanka’s mountainous area is full of clouds all ye

China Famous Black Tea Varieties In The World(1) manufacturer

Famous Black Tea Varieties In The World(1)

2021-02-19 15:50:58

Qimen black tea, or Qihong for short, is a treasure of traditional Chinese Kung Fu black tea. It is a famous tea in history. It was produced in the late 19th century and is one of the world’s three high-flavor teas. "Prince Tea" and other

China Black Tea From China To The World manufacturer

Black Tea From China To The World

2021-02-05 17:56:17

Lapsang Souchong black tea entered Europe in 1610. In 1662, when Princess Catherine of Portugal married King Charles II, her dowry contained boxes of Chinese Lapsang Souchong black tea. Since then, black tea was brought to the British court, and drinking

China Black Tea In China manufacturer

Black Tea In China

2021-02-05 14:26:34

The originator of black tea is in China. The earliest black tea in the world was invented by tea farmers in the Wuyishan tea area in Fujian during the Ming Dynasty in China, and it was named " Lapsang souchong". The Jiang family in Tongmu Villag

China Light compensation all-weather withering technology manufacturer

Light compensation all-weather withering technology

2020-12-20 23:33:58

This technology mainly addresses the problems of uneven withering of fresh leaves in the process of black tea processing, the withering process is restricted by the natural environment, the withering time is too long, and the entire process is expensive.

China How to choose the location of tea factory? manufacturer

How to choose the location of tea factory?

2020-12-05 23:03:23

The location of the primary tea factory should be comprehensively considered in terms of transportation, water sources, environment, employment, raw materials, and topography. Before building a factory, the surrounding environment and geology should be in

China How to choose the most suitable tea fixing machine? manufacturer

How to choose the most suitable tea fixing machine?

2020-12-05 00:57:53

The types of tea fixation machines include drum fixation machines, steam heating fixation machines, hot air fixation machines, steaming fixation machines, etc. Can be purchased according to the following factors. (1) Purchasing according to the interna

China Why should we shake tea tea leaves during the production of oolong tea? manufacturer

Why should we shake tea tea leaves during the production of oolong tea?

2020-11-16 22:00:34

Shaking and withering are both parts of the fermentation. During the withering process of oolong tea, because the leaves are calmly placed, a lot of water will only evaporate from the leaves, and the water in the leaf stalks is not lost, which will lead t

China Is oolong tea a semi-fermented tea? How to process oolong tea? manufacturer

Is oolong tea a semi-fermented tea? How to process oolong tea?

2020-11-15 22:26:33

Oolong tea is a unique existence among all teas. It belongs to a kind of semi-fermented tea. This kind of tea is processed through multiple processes such as drying, drying and shaking, as well as finishing and rolling, and the finished product is process

China Characteristics and types of black tea manufacturer

Characteristics and types of black tea

2020-11-13 23:22:45

Black tea leaves contain a variety of water-soluble chemical substances, including tea polyphenols, caffeine, sugars, amino acids, proteins, fruit acids, aromatic substances, etc.

China What are the common failures of tea kneading machines? What are the reasons? How to solve them? manufacturer

What are the common failures of tea kneading machines? What are the reasons? How to solve them?

2020-11-11 22:04:59

The purpose of tea rolling is to make the initial shape, and to break the leaf cells to increase the flavor concentration of the finished tea. In green tea processing, except for a few famous green teas, rolling is generally an indispensable process.

China What's the best temperature and time for black tea fermentation? manufacturer

What's the best temperature and time for black tea fermentation?

2020-11-05 21:28:32

The purpose of black tea fermentation is to promote profound changes in the contents and prepare a substrate for the formation of the unique color, aroma and taste qualities of black tea.

China China's tea exports in September 2020 amounted to 29,089 tons manufacturer

China's tea exports in September 2020 amounted to 29,089 tons

2020-11-04 21:48:00

According to China Customs statistics, in September 2020, China’s tea export volume was 29,100 tons

China What are the technical points of green tea "fixing" processing? manufacturer

What are the technical points of green tea "fixing" processing?

2020-11-02 22:37:29

Green tea fixation processing is the key to green tea processing. The purpose of fixation is to use high temperature to quickly destroy the activity of enzymes, prevent the oxidation of polyphenols, and maintain the green color

China How to carry out "rolling" step in green tea processing? manufacturer

How to carry out "rolling" step in green tea processing?

2020-11-01 22:02:52

The purpose of tea rolling step is to make the shape initially, and to break the leaf cells to improve the taste concentration of finished tea. In the processing of green tea, in addition to a few famous green tea, rolling is generally an indispensable pr

China How to "wither" fresh leaves before processing green tea? manufacturer

How to "wither" fresh leaves before processing green tea?

2020-11-01 00:49:48

After the fresh leaves are spread, the quality of the leaves becomes soft and emits a delicate fragrance. Generally, the moisture content reaches about 70% (the weight loss rate is about 15% to 20%), which is moderate, and can enter the next process.

China How does the black tea withering process work? manufacturer

How does the black tea withering process work?

2020-11-06 22:16:10

Black tea withering refers to the process in which the fresh leaves entering the plant will lose water for a period of time, so that certain hard and brittle stems and leaves are wilted and withered.

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How does the black tea withering process work?

2020-11-06 22:16:10

Black tea withering refers to the process in which the fresh leaves entering the plant will lose water for a period of time, so that certain hard and brittle stems and leaves are wilted and withered. Withering is not only a physical loss of water, but also a process of chemical changes of contained substances. It is the first process in the initial production of black tea, and it is also the basic process to form the quality of black tea.

The purpose of withering is to evaporate part of the water, reduce the tension of the tea cells, make the leaf stalks become brittle and soft, increase the toughness of the buds and leaves, and make it easy to twist into strips; the second is to cause the inner part of the tea tips due to the loss of water. A series of chemical changes containing substances lay the foundation for material changes to form the specific quality of black tea color and fragrance.

Outdoor sunlight withers:

tea-wither-rack/Bamboo-White-Tea-Wither-Rack-Tea-Withering-Process-Rack

Indoor natural withering is to spread fresh leaves on a withering rack for withering. Each withering rack is divided into 8-12 layers, each layer is about 20 cm apart, and each layer is laid with a withering curtain woven from bamboo. The area of the curtain is generally 1.5 square meters, and 0.5-0.6 kg of leaves per square meter are required. The withering process should be checked frequently, and the uniformity of withering should be paid attention to in time. Generally, the temperature of the upper and lower layers is different. The upper curtain is 1-2℃ high. The curtain frame with better ventilation at the doors and windows loses water faster, so it should be spread thickly. Open windows and doors in time on sunny days to speed up the withering rate, and close doors and windows properly on cloudy and rainy days to maintain indoor temperature. The time of withering varies greatly due to the season, the age of the leaves and the weather. Spring tea is sunny, fresh leaves of grade 1-2 can be withered in 15-20 hours, and sometimes it can be delayed to 36-48 hours in rainy days. Therefore, the indoor natural withering is difficult to adapt to the mechanized tea making today. In the early 1960s, indoor natural withering was gradually eliminated and withering troughs were used.

tea-wither-rack/Bamboo-White-Tea-Wither-Rack-Tea-Withering-Process-Rack-TQJ-20

 

Withering by withering trough:

DL-6CWD-580 Green Black Tea Leaves Withering Process Trough Machine For Tea/Green-Black-Tea-Leaves-Withering-Process-Trough-Machine-For-Tea

Withering trough withering is a method in which fresh leaves are placed in a ventilating trough and heated with air to accelerate the withering process. The withering trough is composed of two parts: trough body and ventilation equipment. Generally, the trough is 10 meters long, 11.5 meters wide, and 80 cm high. The bottom of the trough has a uniform temperature slope and heating blast equipment. The trough surface has iron or The leaf curtain (box) woven from bamboo can spread 2-2.5 kg of leaves per square meter, and the thickness of the spread leaves is about 20 cm. The hot (or cool) wind is sent down to accelerate the evaporation of water. It is rainy in spring and needs to be warmed and withered, but the general temperature should not exceed 30℃, and the withering time is generally 6-12 hours. In summer, the temperature is relatively high, the air is relatively dry, and cold wind is sufficient. This withering method can save plant area, labor and reduce labor intensity, and can better control the process of withering. The quality of withered leaves is better, and it is the method commonly used in my country.

DL-6CWD-580 Green Black Tea Leaves Withering Process Trough Machine For Tea/Green-Black-Tea-Leaves-Withering-Process-Trough-Machine-For-Tea