PROBLEM TO BE SOLVED: To provide miso or the like utilizing an amino acid mixture comprising specific amino acids, and excellent in taste, flavor or the like and to provide a production method thereof.SOLUTION: An amino acid mixture comprising, based on the weight of the amino acid mixture, 35.0-45.0 wt% alanine, 1.8-2.2 wt% arginine, 44.2-51.8 wt% glycine, and 9.0-11.0 wt% sodium glutamate is contained, further as the amino acid mixture other than amino acids derived from a raw material, as much as 1-3 wt% based on the weight of obtained miso.SELECTED DRAWING: NoneCOPYRIGHT: (C)2018,JPO&INPIT【課題】特定のアミノ酸からなり、味や香り等に優れたアミノ酸混合物を利用した、味噌等及びその製造方法を提供すること。【解決手段】原料由来のアミノ酸以外に、さらにアミノ酸混合物として、このアミノ酸混合物の重量基準で、アラニン35.0~45.0wt%、アルギニン1.8~2.2wt%、グリシン44.2~51.8wt%、及びグルタミン酸ナトリウム9.0~11.0wt%からなるアミノ酸混合物を、得られる味噌の重量基準で1~3wt%含んでなる。【選択図】なし