Yam dry: When the yam is excavated, it is necessary to protect the integrity of yam tubers. After the tubers are shipped back, they should be processed in time. Wash the tubers first, soak them in the water, scrape off the skin with bamboo or glass pieces, and press dry the water; then flatten the yam flat on a smooth table and dry. Yam dry film: Choose a round shape, smooth surface, less tumor, no pests, no frostbite yam tubers soaked in water for 10-15 minutes, brush dirt and other impurities, rinse with water 2-3 times, gently planing Yam surface, cut into thin slices of 3-4 mm in thickness. The blocks were spread on a drying sieve and dried by a drying machine at a temperature of 45°C for 7-8 hours. It should be noted that when exposed to air for a long time, Yamatake will absorb moisture and return to moisture, and should be placed in the dryer and dried again. Yam powder: The non-standard scraps left over from the washed yam or processed dried yam pieces are sent to the refiner for refining. The grinded powdered powder he did not use 80 mesh coarse sieve and 100 mesh coarse sieve twice, the sieved material into the centrifuge, and then the precipitated powder into the dryer, drying at 40 °C -50 °C temperature , To about 10% moisture content can be.
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