Abstract: A process for producing milk foam includes pumping milk through a milk line with a milk pump having an adjustable speed for adjusting the capacity of the milk pump. Milk from the milk line and air are mixed inside a first mixing chamber to produce a milk foam. Properties of the milk foam, including a consistency of the milk foam, are a function of the speed of the milk pump. A device for producing the milk foam includes a milk container; an outlet; a milk line connected between the milk container and the outlet; a first mixing chamber installed in the milk line to mix milk and air to produce milk foam; and a milk pump having an adjustable speed coupled into the milk line.

Abstract: A device for processing milk foam for use in an automatic hot and/or cold beverage machine includes a milk pump to pump the milk foam, and a secondary processing device coupled to the milk foam pump to change the consistency of the milk foam. The secondary processing device includes a homogenizer to break up and distribute air bubbles in the milk foam. The homogenizer has a reducing region including a plurality of impact bodies arranged to define a channel labyrinth through which the milk foam is flowable. Additionally, there is provided a process for homogenizing milk foam utilizing the above device, includes steps of a) impacting divided partial flows of the milk foam with the impact surfaces to divide the air bubbles of the milk foam; and b) mixing the divided partial flows with the divided air bubbles together to form new partial flows.

Abstract: A method for producing a fresh, cold, coffee-based beverage using a predetermined amount of ground coffee, includes: feeding a predetermined amount of ground coffee into a brewing chamber; preparing a coffee concentrate with the supplied predetermined amount of ground coffee with a brewing operation in the brewing chamber, wherein the prepared coffee concentrate constitutes a specifiable multiple (VK) of a concentration (KN) for a normal drinking quality for filtered coffee at approximately 1.2 to 1.4% dry substance share; and mixing the prepared coffee concentrate with an amount of water which corresponds to a specifiable multiple (VM) of the amount of the prepared fresh coffee concentrate to prepare the fresh, cold, coffee-based beverage.

Abstract: A method for producing a fresh, cold, coffee-based beverage using a predetermined amount of ground coffee, includes: feeding a predetermined amount of ground coffee into a brewing chamber; preparing a coffee concentrate with the supplied predetermined amount of ground coffee with a brewing operation in the brewing chamber, wherein the prepared coffee concentrate constitutes a specifiable multiple (VK) of a concentration (KN) for a normal drinking quality for filtered coffee at approximately 1.2 to 1.4% dry substance share; and mixing the prepared coffee concentrate with an amount of water which corresponds to a specifiable multiple (VM) of the amount of the prepared fresh coffee concentrate to prepare the fresh, cold, coffee-based beverage.