- provision of the preparation 4, preferably in a tank 3, - supply of the preparation 4 to a dispersal device 7, shearing forces being constantly produced in the dispersal device 7 having a rotating rotor which engages in a stator, - direct vapour heating 20 of the product, preferably by means of a direct vapour heating unit 20 at the dispersal device 7, preferably to a temperature between 60 and 100 degrees Celsius, and - discharge of the microgelled and microparticulated product from the dispersal device 7.