Kanpyo Dried Gourd Ribbon Sushi Ingredient
Tochigi Prefecture — kanpyo cultivation established Edo period, national production monopoly
Kanpyo (干瓢, dried bottle gourd ribbons) are long ribbons of dried calabash gourd (Lagenaria siceraria) — exclusively produced in Tochigi Prefecture which supplies 98% of Japan's kanpyo. The dried ribbons are rehydrated, then simmered in soy, mirin, and sugar until tender and lightly caramelized, used primarily as a sushi roll filling (kanpyo maki is one of Tokyo's most traditional hosomaki rolls) and in fukusa-zushi. Fresh kanpyo is rarely encountered outside Tochigi; it must be reconstituted from dried form for all practical applications. The preparation is labor-intensive: scrubbing with salt removes off-flavors before simmering.