Machine for coffee-based beverages

Machine for coffee-based beverages, the machine comprising:

• a hydraulic pump adapted to generate pressurized water, as a function of values of a configuration signal;
• a hydraulic circuit adapted to transport the pressurized water;
• a volume flowmeter configured to measure a volume of the pressurized water dispensed during a dispensing cycle of a dose of a coffee-based beverage and generate a volume measurement signal indicating said measure of the volume of the pressurized water;
• a processing unit configured to:
• receive a pressure dispensing profile signal indicating a trend of the configured pressure of the pressurized water during the dispensing cycle, as a function of a volume of the water dispensed during the dispensing cycle, wherein said pressure dispensing profile signal comprises a first volumetric portion having a first pressure trend in a first volumetric interval and comprises a second volumetric portion having a second pressure trend in a second volumetric interval subsequent to the first volumetric interval, wherein the first pressure trend has a first value that is constant in the first volumetric interval of an extraction phase and the second pressure trend has a second value that is constant in the second volumetric interval of the extraction phase, wherein the second value is smaller than the first value;
• generate the configuration signal as a function of the first pressure trend during the first volumetric interval so as to drive the hydraulic pump and generate the pressurized water;
• receive the volume measurement signal indicating the measure of a volume of the pressurized water at the end of the first volumetric interval and detect that it is smaller than a volume of the dose;
• generate the configuration signal as a function of the second pressure trend during the second volumetric interval so as to drive the hydraulic pump and generate the pressurized water;
• receive the volume measurement signal indicating the measure of a volume of the water at the end of the second volumetric interval and check whether it is equal to the volume of the dose.