Problem to be solved: to provide an instant powdered alcoholic beverage that has been balanced in a balanced manner with moderate carbonation while improving its balance with moderate carbonation, while it is uniformly dispersed when dissolved in water, and has a natural sweetness and flavor of original sake.Solution: (1) an instant powdered alcoholic beverage containing a (3) sweetener powder of 6.3 to 13.5%, (b) baking soda of 1.8 to 26.9%, (c) organic acid and (d) thickener, (b) a molar ratio of a baking soda and (c) organic acid is 1:0.5 to 2.0. Mixing powdered raw materials without adding moisture, and (a) as a powdery raw material (a).A method for producing an instant powdered alcoholic beverage containing 9% by weight, (c) organic acid and (d) thickening agent (b) and (b) the molar ratio of the baking soda and (c) organic acid is 1:0.5 to 2.0. (b) the method of production using a part or all granules of a powdered raw material excluding one or both of the baking soda and (c) organic acid as raw material.No selection【課題】水に溶解した際に均質に分散し、甘酒本来の自然な甘みや香味を備えつつ、適度な炭酸感とのバランスが改善されたインスタント粉末甘酒飲料、及び当該飲料の製造方法の提供。【解決手段】粉末組成物中に(A)甘酒粉末を6.3~13.5重量%、(B)重曹を1.8~26.9重量%、(C)有機酸及び(D)増粘剤を含有し、(B)重曹および(C)有機酸のモル等量比率が1:0.5~2.0であるインスタント粉末甘酒飲料。水分を添加せずに粉末原料を混合し、粉末原料として(A)甘酒粉末を6.3~13.5重量%、(B)重曹を1.8~26.9重量%、(C)有機酸および(D)増粘剤を用い、(B)重曹および(C)有機酸のモル等量比率が1:0.5~2.0であるインスタント粉末甘酒飲料の製造方法。(B)重曹および(C)有機酸のいずれか一方または両方を除いた粉末原料の一部または全ての造粒物を原料として用いる、前記製造方法。【選択図】なし