Abstract: In order to provide a device for frothing milk in a hot beverage machine, at least comprising a milk frothing nozzle, in which milk can be heated by means of steam produced externally or internally in the device and can be mixed with ambient air, preferably using the principle of a jet pump, the milk frothing nozzle comprising at least a driving nozzle, an air duct for supplying ambient air, one connection each for supplying steam as driving agent and milk, and an outlet for milk foam, wherein the contamination of the air duct by milk is as far as possible prevented, it is proposed that the air duct is integrated in the driving nozzle and has an inner diameter of at least 1 mm, and that in a section of the air duct outside of the driving nozzle, an air nozzle with a reduced cross-section is arranged. Single drawing.

Abstract: An electric machine for making a beverage has a water heater having an inlet and an outlet, a pump for supplying fresh water to the water-heater inlet so that the water heater can supply heated or vaporized fresh water to the outlet, a port, and a milk supply. A mixer has a steam/water intake, a milk intake, an air intake, and an outlet. A milk conduit is connected between the milk supply and the milk intake and an gas conduit between the port and the air intake. A two-position valve connected to the water-heater outlet, to the gas conduit, and to the steam/water intake of the mixer is movable between a first position feeding steam or hot water from the water heater to the steam/water intake of the mixer and a second position feeding steam from the water heater to the gas conduit.