A brewing device for producing a beverage from a single-serve cartridge in the form of a capsule or a pod; the brewing device comprises: two functional assemblies (7, 8) defining respective brewing half-chambers (20, 19) and mutually movable along a longitudinal axis between an open configuration, in which the two brewing half-chambers (20, 19) mutually define a space for loading a cartridge, and a closed configuration, in which the two brewing half-chambers (20, 19) mutually define a brewing chamber for the pod; one of said functional assemblies (7, 8) is a water injection assembly and the other is a beverage extraction assembly; at least one of the functional assemblies (7, 8) comprises: a main body; an insert integral to the main body, coaxial to the longitudinal axis, and delimiting at least a central portion of the associated brewing half-chamber; and a pusher to push the cartridge out of the brewing half-chamber when the brewing device returns to the open configuration at the end of a beverage extraction process; the pusher is mounted between the main body and the insert and comprises a plurality of pushing members distributed around the longitudinal axis; the pusher is mounted to move, along the longitudinal axis, against the trust of elastic return means, from an advanced rest position, in which the pushing members protrude inside the brewing half-chamber, to a forced retracted position, in which the pushing members fail to protrude inside the brewing half-chamber; characterized in that the pushing members are crown-like arranged around the longitudinal axis so as to engage a corresponding peripheral portion of the cartridge. two functional assemblies (7, 8) defining respective brewing half-chambers (20, 19) and mutually movable along a longitudinal axis between an open configuration, in which the two brewing half-chambers (20, 19) mutually define a space for loading a cartridge, and a closed configuration, in which the two brewing half-chambers (20, 19) mutually define a brewing chamber for the pod; one of said functional assemblies (7, 8) is a water injection assembly and the other is a beverage extraction assembly; at least one of the functional assemblies (7, 8) comprises: a main body; an insert integral to the main body, coaxial to the longitudinal axis, and delimiting at least a central portion of the associated brewing half-chamber; and a pusher to push the cartridge out of the brewing half-chamber when the brewing device returns to the open configuration at the end of a beverage extraction process; the pusher is mounted between the main body and the insert and comprises a plurality of pushing members distributed around the longitudinal axis; the pusher is mounted to move, along the longitudinal axis, against the trust of elastic return means, from an advanced rest position, in which the pushing members protrude inside the brewing half-chamber, to a forced retracted position, in which the pushing members fail to protrude inside the brewing half-chamber; characterized in that the pushing members are crown-like arranged around the longitudinal axis so as to engage a corresponding peripheral portion of the cartridge. a main body; an insert integral to the main body, coaxial to the longitudinal axis, and delimiting at least a central portion of the associated brewing half-chamber; and a pusher to push the cartridge out of the brewing half-chamber when the brewing device returns to the open configuration at the end of a beverage extraction process; the pusher is mounted between the main body and the insert and comprises a plurality of pushing members distributed around the longitudinal axis; the pusher is mounted to move, along the longitudinal axis, against the trust of elastic return means, from an advanced rest position, in which the pushing members protrude inside the brewing half-chamber, to a forced retracted position, in which the pushing members fail to protrude inside the brewing half-chamber; characterized in that the pushing members are crown-like arranged around the longitudinal axis so as to engage a corresponding peripheral portion of the cartridge.