Passed the ISO9001 quality system certification and the establishment of industrial drying industry alliance standards under the guidance of the Chinese Standardization Research Institute.
- May 03, 2019 -
The processing of scented tea is a traditional industry in China. In order to improve the processing quality and industrial modernization of scented tea, it is necessary to apply new science and technology in the preliminary processing industry and deep processing industry of scented tea. Advanced microwave technology has good application prospects in scented tea. Next, the characteristics of new scented tea microwave green killing and drying machine are discussed.
new flower tea microwave green-killing and drying machine equipment characteristics
1. microwave tea green-killing: the production of green tea, Oolong tea, health tea and so on need heating green-killing treatment to passivate the activity of polyphenol oxidase, evaporate part of water, volatilize the odor of green grass, soften tissue. At present, the method of stir-frying is commonly used in production, and steam method is used in a few places. The results showed that the quality of scented tea processed by microwave and stir-frying was good, but the time of microwave was short (1/8 of stir-frying time) and could be carried out continuously.
(2), microwave camellia tea green killing: in the general hot air drying process, the material is heated outside, the surface is dry, and the heat is transferred inward. Its direction is opposite to the direction of water diffusion, which affects the outward evaporation of water. The microwave heating is internal heating, and the high water content part warms up faster. Therefore, in the process of microwave drying, moisture migration from the inner layer to the outer layer is faster, and the drying speed is obviously faster than that of hot air drying. The application of microwave drying in the drying of scented tea has the following advantages: (1) fast drying speed; (2) good product quality; because the surface temperature of scented tea is not too high, the chlorophyll changes little, the color is green and green, and the storage is durable, the fragrance loss is less, and the drying is even; at the same time, because of the rapid evaporation of water, it is easy to form porous, the product has good rehydration, and the content is easy to dissolve when making tea. Application of microwave in insecticidal and mildew control of scented tea: scented tea is prone to insects during storage and transportation, and insect contamination often occurs in the process of black tea stacking. In the past, the insecticidal methods of drug fumigation were commonly used, but there was a problem of drug residue. Good insecticidal effect can be obtained by microwave treatment. The insecticidal effect of insects in scented tea is closely related to the dielectric properties of scented tea and insects. When the moisture content of scented tea is less than 12%, it is beneficial to enhance the insecticidal effect.
New-type scented tea microwave green-killing and drying machine energy-saving production of microwave drying equipment with good quality, life-long maintenance and after-sales guarantee (customers who have purchased our equipment from the second-hand machinery market, find us to install and use a lot) is a well-known brand in China; warmly welcome users from all walks of life to consult and exchange, on-site inspection, visit and negotiation; we will dedicate ourselves to it. You provide quality solutions.
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