Abstract: An object of this disclosure is to provide a technique capable of suppressing decrease and deterioration of flavor and/or texture of a cereal processed food product over time after production as well as maintaining the flavor and/or the texture of the cereal processed food product. This disclosure further provides a technique capable of maintaining the flavor and/or the texture of a freshly made cereal processed food product even if the products are stored at room temperature or under a chilled state for a long period of time. This disclosure provides an improver for cereal processed food product containing maltol as a component (A) and at least one component selected from 5-Hydroxymethylfurfural, dimethyl sulfide, and 3-methylbutanal as a component (B).