Chikumanishiki Wagahai Sparkling Junmai Sake 9% 720mlA sparkling junmai sake from Chikumanishiki Brewery in Saku, Nagano a lower strength, gently effervescent style designed to be served chilled as an aperitif or alongside Japanese cuisine. The naturally cold mountain water and Mt. Asama subterranean springs give the sake its hallmark clarity. Chikuma Nishiki Sake Brewery has been crafting sake since 1681 in the high mountain region of Saku, Nagano Prefecture, in the shadow of Mt. Asama and Mt.