tea microwave dehydrator tunnel machine
tea microwave dehydrator tunnel machine Generally speaking, the main purpose of tea dehydration is to inhibit the enzymatic oxidation of tea polyphenols in fresh leaves by destroying and inactivating the oxidase activity in fresh leaves under high
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tea microwave dehydrator tunnel machine
Generally speaking, the main purpose of tea dehydration is to inhibit the enzymatic oxidation of tea polyphenols in fresh leaves by destroying and inactivating the oxidase activity in fresh leaves under high temperature, evaporate some water in fresh leaves, make tea soft, facilitate rolling and forming, and at the same time give off a green odor to promote the formation of good aroma.
What technology is LEMO professional tea dehydration equipment?
Tea is rich in polyphenol oxidase. If it is not dehydrated, polyphenols will be oxidized and fermented under the action of enzymes, so that the tea will quickly lose its color and then go bad. It can be seen that tea green removal is an inevitable process of tea processing.
In recent years, with the continuous development of tea dehydration technology, microwave tea dehydration has been gradually applied to tea production. The microwave temperature rises quickly, and the temperature of dehydration is generally above 90 ℃. The microwave can quickly raise the problem to 90 ℃, and the time is controlled within 2 minutes, so that the oxidase activity can be immediately inhibited, so as to achieve the effect of dehydration. At the same time, microwave also has the effect of drying, which can effectively remove the moisture in tea, so as to achieve the purpose of dry storage.
Characteristics of microwave tea dehydration:
1. Fast heating speed: microwave can directly heat the inside and outside of the tea at the same time, without preheating, and the tea can be processed when it is turned on.
2. Uniformly heating: microwave dehydration means that the electromagnetic wave generated by the magnetron evenly shines on the tea, and the inside and outside are heated at the same time, without coke leaves, coke edges, chips, etc.
3. Less nutrient loss of tea: tea leaves stay in the microwave heating box for a short time, and do not need air and steam to conduct heat, so it can retain the nutrients in tea to the maximum extent.
4. Great sterilization and mellowing effects: There is often the possibility of secondary pollution in the process of tea picking and making. Microwave dehydration and drying have the functions of sterilization and mellowing. Microwave is effective in removing the bitter taste of summer and autumn tea. Other machines cannot substitute this mellowing function.
5. The quality of tea has been improved: the surface temperature of the tea is not high when the microwave is used to disinfect, and it does not need to be cooled when the leaves come out, so there is little change in the green of the leaves, the color is green and resistant to storage, the aroma loss is small, and the drying is even. At the same time, because of the rapid evaporation rate of water, it is easy to form porosity, and the product has good rehydration property, and the dissolved substances are easy to dissolve when making tea.
6. Reduce labor intensity and improve work efficiency: automatic feeding and unloading are adopted. The operator only needs to press the button to monitor the equipment operation and inspect the degree of green removal of fresh leaves. It only takes 1-2 people to complete the dehydration and drying.
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