A set of complex theoretical analyses of effects, carried out by the author enabled to create a new physical interpretation of the emulsifying mechanism taking into account the role of basic emulsion parameters, especially absolute viscosity, interfacial tension, density of emulsion phases and especially pressure and temperature. A mathematical description of the process was compiled with a determination of the role of those parameters influencing the characteristic dimension of scattered phase particles. As a result of testing the emulsion of rape oil and water a verified theoretical-experimental model of emulsifying process was elaborated and described by an equation.