An espresso dispensing group (MC) comprises a chamber (40) comprising a hot water inlet and a hot water outlet toward an amount of product (P), a plunger (20) adapted to move in a linear direction (X) in the chamber (40) to compress hot water toward the outlet, an operating lever (30) connected to the plunger (20) and manually operable to move the plunger (20) in the chamber (20), an electric actuator (50) which is coupled to the plunger (20) to move it in the chamber (40), an electronic regulator connected to the electric actuator (50) and configured to drive the electric actuator (5) to control the displacement of the plunger (20) in the chamber (40), a position sensor (90) connected to the regulator and configured to generate a position signal representative of the linear position of the plunger (40).
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