DL-6CQFJ-70 used for sorting fresh leaf which picked by tea harvester, can separate different sizes of tea for producing different grades of finished tea.
DL-CRQ-20Z CTC black tea HRS Gyrovane rotorvane machine mainly used for processing CTC black tea.
DL-6CYQT-90250 mainly used for Oolong tea processing, drum made of bamboo, the activity of withered tea was increased by shaking, It can make tea taste more fragrant, Capacity about 120 kg per batch.
DL-6CHL-RQ10 is small type tea drying machine, can drying for all kind tea, use gas heating, capacity from 40kg to 600kg per hour, temperature and speed adjustable, safety, energy saving and environmental protection
DL-6CHZ-9QB is full stainless steel tea dehydrator, electric heating, drying area about 10sqm, capacity 27-45 kg per batch.
DL-6CHZ-5 use electric heating, outer is baking paint inside is stainless steel trays, drying area 5sqm, capacity 15-25kg per batch.
DL-6CRT-65T can process almost all kind tea, brass type, the part contacted with tea is made of stainless steel, drum diameter 65cm, height 48cm, capacity about 60 kg per batch.
Circular vibrating screen separator mainly for sorting different size of tea dust/powder/fragment, used for CTC tea or other crushed tea leaf, Optional different screens to get different sizes of tea.
Modern pressed cake is supported by science, which proves that the pressed cake has more advantages than loose tea in the process of transformation.
The selection of history produced Pu'er tea cakes, but the unique shape of Pu'er tea has been preserved to this day due to its unique tea aroma.
Proper drying can fully reflect the aroma of Wuyi rock tea in the final stage, here is the more information of the drying.
Withering and shaking green are the key steps in the production of Wuyi rock tea. Welcome your contact for more details.
How long does it take for black tea to ferment? Black tea generally takes 5 to 6 hours to ferment.
Fermentation is the most important part of black tea. Traditional fermentation refers to putting the rolled tea embryos in a basket, pressing them a little, and then covering them with a fermented cloth soaked in warm water to increase the temperature and humidity of the fermented leaves, promote the activity of enzymes, and shorten the fermentation time. After 5 to 6 hours, the veins of the leaves are reddish-brown, and they can be baked and dried. The purpose of fermentation is to oxidize the polyphenols in tea leaves under the promotion of enzymes, so that the green tea husks turn red.
Tea fermentation is a key process to form the quality characteristics of black tea color, aroma and taste. Generally, the kneaded leaves are placed in the fermentation frame or fermentation car and entered into the fermentation room for fermentation. Fermentation should master the appropriate temperature, humidity and oxygen amount required to satisfy the oxidative polymerization reaction of tea polyphenol oxidase.
Black tea is normally fermented for 4 to 6 hours. However, the specific fermentation time depends on the age and tenderness of the tea leaves, the cold and hot weather, the degree of wilting and drying, and the degree of rolling. Generally, young leaves, fully rolled raw materials, and leaves with high fermentation temperature ferment faster, and the time is relatively short. Otherwise, it will take longer.
There are long and short periods of time. As long as it is not sour or stuffy during black tea fermentation, it is fine. The tea maker should keep track of the fermentation progress at any time. Fermentation time is just a reference indicator. Whether fermentation should be terminated, or should it be based on the degree of fermentation.
Introduction of black tea fermentation
For moderate fermentation, the leaf color basically turns red and yellow, the green gas disappears, and the aroma of flowers and fruits appears as the standard. In the case of mass production, the final evaluation method is used to check the color of the soup, taste the taste, look at the bottom of the leaves, and check the degree of fermentation.
The constant temperature fermentation temperature is controlled at about 22-28 ℃, and the precise value needs to be further tested according to the fresh leaf raw materials, the degree of withering, and the degree of rolling. Black tea fermentation is the key to making black tea. The fermentation time and temperature must be strictly controlled and properly adjusted, so that black tea can be successfully produced. At present, many tea farmers use black tea fermentation machines to imitate natural fermentation, which greatly shortens the fermentation time and can achieve uniform fermentation of the entire batch.
