Method by which milk/air emulsions, particularly milk foams, are produced by a device for producing a milk foam, wherein the device comprises at least: a) a milk duct flowed through by milk, b) at least one device for producing a milk/air emulsion as a cold milk foam with a first temperature T1, c) a steam source for injection of hot steam into a milk/air emulsion of first temperature T1 at a hot temperature T3 > T1 for producing a hot milk foam with the temperature T3 so that the hot milk foam is heatable to the temperature T3 by means of steam injection, wherein T3 lies, in particular, between 55° C and 80° C, and d) a heat exchanger for warming a milk/air emulsion of first temperature T1 to a warm temperature T2 for producing a warm milk foam with the temperature T2, wherein T1 < T2 < T3, wherein the milk foam is can be warmed by the heat exchanger to the temperature T2 to a temperature having a denaturation effect, particularly to between 40° C and 54° C, wherein the method comprises at least the following steps: A) conveying milk in the milk duct by means of a milk pump and at the same time inducting air through an air duct (10, 13, 14), B) mixing milk and air - preferably in a first mixing chamber - for producing an air/milk emulsion as cold milk foam with a temperature T1, C) adding steam to the air/milk emulsion for heating the air/milk emulsion to a hot temperature T3 in order to produce a hot milk foam with the hot temperature T3 > T1, wherein the hot milk foam is heated by means of steam injection of the hot milk foam to the hot temperature T3, particularly between 55° C and 80° C; and D) wherein prior to or after step c) warming the air/milk emulsion with the temperature T1 by a heat exchanger to a warm temperature T2 > T1 is carried out in order to further produce a warm milk foam with the warm temperature T2, wherein T1 < T2 < T3, wherein the warm milk foam is warmed by the heat exchanger to the warm temperature T2, particularly between 40° C and 54° C. a) a milk duct flowed through by milk, b) at least one device for producing a milk/air emulsion as a cold milk foam with a first temperature T1, c) a steam source for injection of hot steam into a milk/air emulsion of first temperature T1 at a hot temperature T3 > T1 for producing a hot milk foam with the temperature T3 so that the hot milk foam is heatable to the temperature T3 by means of steam injection, wherein T3 lies, in particular, between 55° C and 80° C, and d) a heat exchanger for warming a milk/air emulsion of first temperature T1 to a warm temperature T2 for producing a warm milk foam with the temperature T2, wherein T1 < T2 < T3, wherein the milk foam is can be warmed by the heat exchanger to the temperature T2 to a temperature having a denaturation effect, particularly to between 40° C and 54° C, A) conveying milk in the milk duct by means of a milk pump and at the same time inducting air through an air duct (10, 13, 14), B) mixing milk and air - preferably in a first mixing chamber - for producing an air/milk emulsion as cold milk foam with a temperature T1, C) adding steam to the air/milk emulsion for heating the air/milk emulsion to a hot temperature T3 in order to produce a hot milk foam with the hot temperature T3 > T1, wherein the hot milk foam is heated by means of steam injection of the hot milk foam to the hot temperature T3, particularly between 55° C and 80° C; and D) wherein prior to or after step c) warming the air/milk emulsion with the temperature T1 by a heat exchanger to a warm temperature T2 > T1 is carried out in order to further produce a warm milk foam with the warm temperature T2, wherein T1 < T2 < T3, wherein the warm milk foam is warmed by the heat exchanger to the warm temperature T2, particularly between 40° C and 54° C.