PROBLEM TO BE SOLVED: To produce good-quality natto excellent in taste and appearance using a soybean broth generated at the time of natto production.SOLUTION: In a method for producing natto, soybeans are immersed in water, the soybeans are cooked after water is sufficiently absorbed into the soybeans, a soybean broth generated by cooking is poured out before completion of the cooking, and after the soybean broth is sprayed, as it is or as diluted, to the cooked soybeans whose temperature has been lowered, Bacillus natto is propagated on the soybeans.COPYRIGHT: (C)2014,JPO&INPIT【課題】 納豆の製造時に生じる大豆煮汁を利用して味覚及び外観の優れた良質の納豆を製造すること。【解決手段】大豆を水に浸漬し、十分吸水させた後この大豆を蒸煮し、蒸煮終了前に蒸煮によって生じた大豆煮汁を注出し、この煮汁をそのまま又は希釈して、温度を低下させた前記蒸煮後の大豆に散布した後、当該大豆に納豆菌を繁殖させることを特徴とした納豆の製造方法。【選択図】なし
