The bottle was designed by Miyasaka Sake Brewery in Nagano Prefecture, and it is modeled after the vague color gradation seen from an airplane window.

Brewing sake with traditional Japanese colors: Nippon IRO SAKE Project [Part 1]

The roundness of the rice sacks is expressed in the color of Japanese cedar, Saiya Sake Brewery in Akita Prefecture.

Brewing sake with traditional Japanese colors: Nippon IRO SAKE Project [Part 1]

Use color stickers to vote for the color you associate with the flavor.

The votes were cast by sake brewery workers and buyers from Isetan Mitsukoshi.

Color samples of traditional Japanese colors