DEVICE AND METHOD FOR STERILIZING AN EMULSION AT AN ULTRAHIGH TEMPERATURE, PARTICULARLY A COSMETIC EMULSION FOR THE SKIN, WHICH IS UNSTABLE AT THE STERILIZATION TEMPERATURE

摘要

The invention relates to a method for sterilizing an emulsion at an ultrahigh temperature, particularly a cosmetic preparation for the skin, characterized in that it includes the steps of: a) gradually preheating (120) said emulsion to a preheating temperature T1, which is the stability limit for said emulsion; b) carrying out ultrahigh-temperature sterilization by infusing the thus-preheated emulsion, including i) rapidly heating (131) the emulsion to a sterilization temperature T2; ii) maintaining (132) said emulsion at the sterilization temperature; and iii) rapidly vacuum-cooling (133) the emulsion to a final sterilization temperature T3; and c) gradually cooling (150) the emulsion, while agitating same, to a storage temperature T4.