Abstract: A machine for preparing and dispensing an espresso coffee including: a water supply (1) for feeding cold water; a dispensing group (19) and a corresponding coffee boiler (18); a coffee pump (7) which receives heated water and pumps said heated water towards said coffee boiler (18); a flow meter (9) arranged between said coffee pump (7) and said coffee boiler (18) for measuring an instantaneous water flow rate, i.e., the volume of water that passes from said coffee pump to said coffee boiler per unit of time; a memory for storing at least one pressure profile, wherein said coffee pump (7) is configured to operate according to said pressure profile during coffee dispensing; and a control unit (15) which stops dispensing of coffee based on a measurement of water flow calculated from starting time of the dispensing.

Abstract: A machine for preparing and dispensing an espresso coffee comprising: a water supply (1) for feeding cold water; a dispensing group (19) and a corresponding coffee boiler (18); a coffee pump (7) which receives heated water and pumps said heated water towards said coffee boiler (18); a flow meter (9) arranged between said coffee pump (7) and said coffee boiler (18) for measuring an instantaneous water flow rate, i.e., the volume of water that passes from said coffee pump to said coffee boiler per unit of time; a memory for storing at least one pressure profile, wherein said coffee pump (7) is configured to operate according to said pressure profile during coffee dispensing; and a control unit (15) which stops dispensing of coffee based on a measurement of water flow calculated from starting time of the dispensing.