Granulated bean paste or "miso" is made by partially drying uncooked bean paste by vacuum freeze drying, thoroughly mixing and then storing the semi-dried bean paste in an isothermal chamber at a substantially consistent temperature within the range of 15.degree. C. to 20.degree. C. for a few days to homogenize the water content in the semi-dried bean paste, then extruding the semi-dried bean paste into an elongated form, and finally cutting and breaking the bean past material to obtain fine particles of granulated bean paste.