Resealable Package Koji Fermented Rice & Soybeans Non-GMO Quality OCIA Certified Organic Kosher Pareve Pure and Purifying EDEN Shiro Miso is real organic American soybeans and rice, koji fermented the way miso has been for millennia. The sweetest EDEN miso, mellow, smooth, and lowest in sodium. Folklore of Japan holds that miso was a gift of the gods and is still a staple of Japanese meals.