A process for manufacturing a beverage preparation machine comprising the steps of: - providing a group of components a) to f) comprising: a) a brewing unit for receiving an ingredient of said beverage, in particular a pre-portioned ingredient supplied within a capsule or a pod, and for guiding an incoming flow of liquid, such as water, through said ingredient to a beverage outlet; b) an in-line heater, such as a thermoblock, for heating said flow of liquid to be supplied to the brewing unit; c) a pump for pumping said liquid through said in-line heater; d) one or more fluid connecting members (5,200) for guiding said liquid from a source of liquid, such as a tank of liquid, to the beverage outlet; e) an electric control unit, in particular comprising a printed circuit board, for receiving instructions from a user via an interface (2a,2b) and for controlling the in-line heater and the pump; and f) one or more electric sensors (70,95) for sensing at least one operational characteristic selected from characteristics of the brewing unit, the in-line heater, the pump, a liquid reservoir, an ingredient collector, a flow of said liquid, a pressure of said liquid and a temperature of said liquid, and for communicating said characteristic(s) to the control unit; - connecting components a) to f) for assembling said beverage machine, characterised in that the step of connecting components a) to f) comprises pre-assembling at least two or three modules (500,600,2;5,800;2,800;200,600;200,800), each module being fully automatically assembled from at least two components of said components a) to f), the components of the fully automatically preassembled modules being so configured to be automatically seizable, orientable, positionable and fully connectable to each other in one or more automatic assembly steps, in particular by one or more assembly devices such as robots and/or automates,the components of a fully automatically preassembled module (500,600,2;5,800; 2,800;200,600;200,800) having inter-connectable rigid connecting parts that are automatically orientable and positionable and connectable during the automatic assembly step(s). - providing a group of components a) to f) comprising: a) a brewing unit for receiving an ingredient of said beverage, in particular a pre-portioned ingredient supplied within a capsule or a pod, and for guiding an incoming flow of liquid, such as water, through said ingredient to a beverage outlet; b) an in-line heater, such as a thermoblock, for heating said flow of liquid to be supplied to the brewing unit; c) a pump for pumping said liquid through said in-line heater; d) one or more fluid connecting members (5,200) for guiding said liquid from a source of liquid, such as a tank of liquid, to the beverage outlet; e) an electric control unit, in particular comprising a printed circuit board, for receiving instructions from a user via an interface (2a,2b) and for controlling the in-line heater and the pump; and f) one or more electric sensors (70,95) for sensing at least one operational characteristic selected from characteristics of the brewing unit, the in-line heater, the pump, a liquid reservoir, an ingredient collector, a flow of said liquid, a pressure of said liquid and a temperature of said liquid, and for communicating said characteristic(s) to the control unit; a) a brewing unit for receiving an ingredient of said beverage, in particular a pre-portioned ingredient supplied within a capsule or a pod, and for guiding an incoming flow of liquid, such as water, through said ingredient to a beverage outlet; b) an in-line heater, such as a thermoblock, for heating said flow of liquid to be supplied to the brewing unit; c) a pump for pumping said liquid through said in-line heater; d) one or more fluid connecting members (5,200) for guiding said liquid from a source of liquid, such as a tank of liquid, to the beverage outlet; e) an electric control unit, in particular comprising a printed circuit board, for receiving instructions from a user via an interface (2a,2b) and for controlling the in-line heater and the pump; and f) one or more electric sensors (70,95) for sensing at least one operational characteristic selected from characteristics of the brewing unit, the in-line heater, the pump, a liquid reservoir, an ingredient collector, a flow of said liquid, a pressure of said liquid and a temperature of said liquid, and for communicating said characteristic(s) to the control unit; - connecting components a) to f) for assembling said beverage machine,