Tamba black soybeans are produced in Sanda, and edamame are immature beans that mature into black soybeans. The surface of the pod is covered with brown fuzzy hairs and dark brown spots, but these are characteristics of the pod and do not affect the quality of the beans. You can buy them from store shelves, such as from the direct sales market in the city, from early to mid-October every year. They are also popular as gifts. The best time to eat them is when the pods turn a little yellow. Firm and rich in flavor, the slightly purple beans are so delicious that you won’t be able to stop once you start popping them in your mouth.