A method of manufacturing a toner including forming an emulsion by mixing and stirring an aqueous phase and an oil phase in an emulsification mechanism by a stirring blade. The oil phase contains a dissolved material or a dispersed material which contains an organic phase formed of at least one of a resin, a resin precursor, and a monomer.
The emulsification mechanism includes an emulsification circulation route formed of pipes having a main portion, and an emulsification device located in the middle of the emulsification circulation route.
A stirring blade is provided in the emulsification device. In addition, the stirring Reynolds number (Stirring Re) during the stirring is from 3,000 to 15,000 when calculated based on the following relationship (1): Stirring Reynolds number (stirring Re) = ρnd 2 /µ (1). In the relationship (1), ρ represents the density of the emulsion (kg/m 3 ), n represents the rotation number (rps) of the stirring blade, d represents the blade diameter (m) of the stirring blade, and µ represents the viscosity (Pa s) of the emulsion.