PROBLEM TO BE SOLVED: To provide a rod-shaped expanded food product rich in flavor and free of irregularity in color or taste.SOLUTION: The method of producing an expanded food product 1 includes: a step of producing an additive-impregnated material in which an additive-impregnated material 7 is produced by impregnating a grain raw material 3 with a liquid additive 5 a step of continuously producing an intermediate expanded material in which the produced additive-impregnated material 7 is charged in an extrusion molding machine 23, heated and blended, and instantaneously discharged outside after pressurized, and an intermediate expanded material 17 is produced continuously and quantitatively a rod-molding step in which the produced intermediate expanded material 17 is hardened while being linearly drawn by a transfer means 20 to be molded into a rod shape, and a cutting step in which the intermediate expanded material 17 molded into a rod shape is cut to a predetermined length. The surface of the expanded food product 1 may be dusted with a coarsely crushed and dried material 9 such as bonito, tea leaves, vegetables, fruits.COPYRIGHT: (C)2013,JPO&INPIT【課題】棒状形状を有し、色ムラや味ムラの無い風味豊かな膨化食品を提供する。【解決手段】穀物原料3に液体添加物5を含浸させて添加物含浸原料7を生成する添加物含浸原料生成工程と、生成された添加物含浸原料7を押出し成形機23に投入して加熱混合し、加圧後一挙に外部に放出させて定量ずつ連続的に中間膨化材17を生成する中間膨化材生成工程と、生成された中間膨化材17を搬送手段20によって直線状に引き出しながら硬化させ棒状形状にする棒状成形工程と、棒状形状に成形された中間膨化材17を所定長さに切断する切断工程と、を備えた膨化食品1の製造方法である。膨化食品1の表面に前記鰹節、茶、野菜、果実等の乾燥粗砕物9をまぶすことも可能である。【選択図】図3
