PROBLEM TO BE SOLVED: To provide a cooked rice with assorted ingredients such as sushi rice excellent in appropriate unravelling properties, having good taste with aging phenomenon being suppressed.SOLUTION: A rice cooking apparatus includes transport means such as a conveyor which transports rice immersed in water, a steaming device which steams rice on a conveyor with high-temperature steam, and a water spraying device which feeds hot water to the rice on the conveyor in the steaming device. During the steaming step in the steaming device, cooked rice from which amylose is eluted and washed away with hot water in an amount more than the necessary for water addition in rice cooking, an etherified and/or esterified tapioca starch, and a seasoning such as vinegar for sushi are mixed.COPYRIGHT: (C)2014,JPO&INPIT【課題】 適度なほぐれ性に優れ、老化現象が抑えられた味覚のよいすし飯などの混ぜご飯を提供する。【解決手段】 水に浸漬した米を移送するコンベアのような移送手段と、コンベア上の米を高温蒸気で蒸す蒸し装置と、蒸し装置内においてコンベア上の米に温水を供給する散水装置とを備えた炊飯装置において、前記蒸し装置内における蒸し工程中に、炊飯に必要な加水量よりも多い量の温水を注水して米から溶出したアミロースを洗い流して炊飯した米飯と、タピオカ澱粉のエーテル化物及び/又はエステル化物と、すし酢などの調味料を混合する。【選択図】図13
