The application of microwave tea fixation machine generated thermal effects. When the magnetron microwave shine tea tea inside polar molecules microwave cyclical changes periodically with the microwave. Due to the high frequency of the microwave, so that the high-speed collision of the tea internal molecular generated a lot of frictional heat to quickly raise the temperature of the material, so as to achieve the effect of rapid heating. Two, microwave tea sulfate should generally be in a hot-air drying process of the material in the external heat, the surface is dry, heat passes inwardly, and the direction opposite to the delivery direction of the moisture diffusion, and moisture outwardly evaporated. Microwave internal heating, warming faster high water content of the site. Therefore, in the microwave drying process, moisture from the inner layer to the outer layer of the migration speed fast drying is significantly faster than hot air drying.
For more information
Tea drying microwave drying has the following advantages: (1) fast drying; (2) product quality; due to the the tea surface temperature is not too high, the chlorophyll is little change, emerald green color and storability, less loss of aroma, dry uniformity; simultaneously due to the rapid evaporation rate, it is easy to form a porous, the rehydration of the product is good, the contents of soluble tea when. Third, the microwave tea insecticidal and antifungal |
