This method comprises: a supplying step for supplying raw materials of a wheat flour composition to a stirring device a stirring step for stirring the raw materials while adding water using the stirring device a granulating step for, by using an extrusion granulating device provided with a screen formed annularly having a plurality of openings and an extrusion blade arranged inward of the screen, rapidly rotating the extrusion blade so as to inhibit generation of gluten in the wheat flour composition produced through the stirring in the stirring step, and extruding and granulating the wheat flour composition from the openings of the screen and a drying step for drying the wheat flour composition granulated in the granulating step.本發明提供一種製造具有均勻的粒徑、且容易溶解於水中的小麥粉組成物的方法。方法包括:供給步驟,向攪拌裝置供給小麥粉組成物的原料;攪拌步驟,使用所述攪拌裝置並對所述原料加水來進行攪拌;造粒步驟,使用具備具有多個開口且形成為環狀的篩、及設置於所述篩的內側的擠出葉片的擠出造粒裝置,以於藉由在所述攪拌步驟中得到攪拌而生成的所述小麥粉組成物中抑制麩質的生成的方式,使所述擠出葉片高速旋轉,而將所述小麥粉組成物自所述篩的所述開口擠出來進行造粒;以及乾燥步驟,對在所述造粒步驟中得到造粒的所述小麥粉組成物進行乾燥。S10~S13‧‧‧步驟
