To provide a technique for aging a food composition by vibrating it.SOLUTION: A method for aging a food composition, in which a packaging container 7 having a circular cross section for storing a food composition is placed in a storage part of a storage body 1 in a laid state to age the food composition while vibrating and rolling the packaging container; the storage part used for aging the food composition includes a lower support part 3 constituting a ground surface of the packaging container placed in the laid state, and a side support part 4 for restricting a movable range in a rolling motion of the packaging container on the lower support part.SELECTED DRAWING: Figure 5【課題】食品組成物に振動を与えることにより熟成させる技術の提供。【解決手段】収納体1の収納部に、食品組成物が収容された断面円形の包装用容器7を寝かせた状態で載置し、前記包装用容器に振動を加え転がり運動をさせながら、食品組成物を熟成する熟成方法であり、前記収納部は、寝かせた状態で載置された前記包装用容器の接地面を構成する下方支持部3と、該下方支持部上における前記包装用容器の転がり運動の可動域を制限するための側方支持部4とを備える、食品組成物の熟成に用いる収納体。【選択図】図5