In Japanese, roku translates as the number six. Inside every bottle, you'll find six very special botanicals sourced in Japan. These represent Suntory’s commitment to only use Japan's best ingredients harvested from the best growing areas. Every aspect is crafted by Japanese artisans with a centuries-old tradition of meticulous attention to detail. Not only are the ingredients of the highest quality, many are also uniquely Japanese and, therefore, best understood by Japanese artisans. Suntory’s mastery of this process is the result of extensive experience gained over decades making gin. Suntory developed its own multiple distillation process as a result of the special features each botanical brings to the perfectly balanced mix.
— Distiller's notes