This program is all about sweet potatoes. Sweet potatoes are used in a variety of delicious ways, from desserts to traditional Japanese dishes to salads, and as the basis for shochu liquor. Yakiimo, a baked whole sweet potato, is a very popular snack in Japan. As a result of repeated breed selection, there are about 90 types of sweet potatoes with outstanding sweetness in Japan. Farmers constantly pursue sweeter potatoes with improved textures. Enjoy the mysterious world of the sweet potato.