Beverage preparation device provided with a liquid reservoir, a dispensing line connected to the reservoir and a pump for displacing liquid from the liquid reservoir to the dispensing line, wherein the pump is connected to a control unit and is configured to supply liquid to the dispensing line at a first flow rate and at a second flow rate which is greater than the first flow rate, characterized in that the dispensing line comprises an outlet passage with a peripheral wall provided with at least one deformable wall section, which peripheral wall surrounds a relatively small dispensing opening at the first flow rate and surrounds a larger dispensing opening at a second flow rate.
