Emulsifying is the process of mixing two liquids that are difficult to mix. The main focus of emulsifying is the dispersion of the discontinuous phase into preferably fine droplets. Rotor-stator machines are particularly well-suited for emulsifying tasks. The combination of high shearing and expanding forces in the mixing head allows for very fine droplets. High turbulences also enable rotor-stator machines to contribute to a quick transport of emulsifier molecules to the newly-formed surfaces.