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.
1. The effect of temperature on enzymes
There are many enzymes in tea. For example, the presence of polyphenol oxidase can catalyze the oxidation of polyphenols and make the leaves red. If a certain method is used to destroy the activity of polyphenol oxidase, the polyphenols will lose the conditions for the oxidation reaction, so they will not quickly turn red. The "fixation" process in green tea processing is to use high temperature to "Passivation" the activity of enzymes, so that the polyphenols will not be enzymatically oxidized during the subsequent rolling and drying process, thereby maintaining the green leaves of the clear soup.
The purpose of "fixation" is to use high temperature to destroy the oxidase activity, but if it is not handled properly, not only will it not destroy the enzyme activity, but it will increase the enzyme activity, causing red tea leaves and green leaves. It can be seen that the temperature has a duality on the enzyme, that is, it increases the speed of the catalytic reaction. At the same time, the speed of the passivation reaction is also increased under high temperature conditions.
It is irreversible that the enzyme is destroyed by heat, but sometimes the fixation temperature is not high enough, and the enzyme activity is inhibited without being destroyed. After the high temperature is relieved, it will regain vitality, and red stems and green leaves will appear when they are twisted or dried.
