Kokuto is Okinawa's traditional form of sugar, which is made simply by boiling down sugarcane juice, a method first introduced from China about 400 years ago. Despite Okinawa's turbulent history, the skills have been passed down through the generations, and artisan kokuto continues to play an essential role in the life and culture of the prefecture. On this edition of Journeys in Japan, Michael Keida visits the island of Ie-jima, as well as Okinawa's main island, to explore the enduring appeal of this home-grown source of sweetness and the deep roots of Kokuto culture.