山药,又名山薯、长薯、山药蛋等,是一种药食兼用的经济作物。山药含水量较多,不便长期贮存和运输,经过深加工才能使经济效益进一步提高。一、山药干。11月上旬至次年4月初,均可采挖山药。采挖时要保持山药块茎的完整性,一次采挖干净。块茎运回后立即洗净,泡在水中,用竹片或玻璃片刮去外皮,压干水分。再把山药平放在光滑的桌上搓圆,然后晒干即可。二、山药干片。选择外形圆整、表面光 Yam, also known as potato, potato, yam egg, is a kind of both economic and medicinal crops. Yam more water content, inconvenience long-term storage and transportation, through deep processing in order to further improve economic efficiency. First, dried yam. Early November to early April next year, all can dig yam. Excavation to maintain the integrity of yam tubers, a digging clean. Immediately after tubers shipped back wash, soaked in water, scraping the skin with bamboo or glass, pressed dry moisture. Then yam flat on a smooth table rub, and then dried can be. Second, yam dry film. Choose a round shape, the surface light