Fuente: WIPO "dairy products" Production of a food product formed from edible fats such butter, butter oil and vegetable oils, particularly but not only concerned with the production of a spreadable refrigerated butter by preparing a premix in a suitable vessel (1) of casein and/or a caseinate derivative, a liquid carrier and an emulsifying agent where casein is dispersed in colloidal form and is peptised during agitation and heating by means of steam injection (3). The hot emulsion is recirculated through the vessel and solid butter is added (8). The product so formed may be used as such for mixing with other products or spraying or even spray drying but is unstable and may be stabilized by chilling to -4 degrees Celsius (9), by mixing with furter emulsifying agent (10) and heating (12). The stabilized product is then packaged hot (13) and may be heat treated by chilling to recrystallize the fats (14) and rewarming to about 20 degrees Celsius (15) before the product is stored at 5 degrees Celsius (16).