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2003 14 minutes The series "The Making". We follow the technology used to make familiar products, and communicate the relationship between the origins of things and science and technology. This time, we look at "konnyaku". The raw material is konnyaku yam. The yam is crushed with the skin on and kneaded well. The glucomannan component gives it a sticky texture. It is then poured into a mold and steamed to complete. Learning/Education Ichikawa Foods Co., Ltd. Head Office Factory