The invention relates to a method of producing finely divided oil-in-water emulsions which comprise oil, water and at least one emulsifier, which comprises a step A) producing a mixture 2, which has oil, water, at least one emulsifier and at least one cosmotropic substance, by mixing oil, water, at least one emulsifier and at least one cosmotropic substance, where the phase inversion temperature PIT2 of this mixture (Winsor IV system) is less than the phase inversion temperature PIT1 of a mixture 1 (Winsor IV system) which has no cosmotropic substances and otherwise the same composition as mixture 2, and subsequently a step B) addition of a diluent to mixture 2 to convert this mixture to an emulsion 3, where the amount of added diluent is chosen so that the resulting emulsion 3 at a pregiven temperature is not in the Winsor IV phase region.