Patent ID: 8383181
Filing Date: 2013-02-26
Classification: A47J,A61B

Abstract:
1. A method for producing crema in a coffee vending machine that has a flow-through heater for heating water and that is charged with substrate capsules including a Venturi nozzle for crema production, the method comprising: a) heating the water in the flow-through heater; b) brewing ground coffee using the heated water in a brewing chamber in order to produce a coffee drink; and c) producing crema by mixing the coffee drink with a gas in the Venturi nozzle; wherein, in step c), at least one of (i) the volumetric flow of the coffee drink or (ii) the volumetric flow of the gas is increased in the Venturi nozzle for the duration of a predetermined time interval, the predetermined time interval being controlled depending on said volumetric flow of the coffee drink or said volumetric flow of the gas which has been increased.