A brewing machine includes a brewing chamber delineated by first and second parts (12, 20) that can move relative to one another between closed and open positions, and a device for ejection of a portion of the infused product including an ejection element that can be moved by an actuating mechanism. A retractable flap is mounted to be able to move on the ejection element. The actuating mechanism moves the ejection element back from the chamber in the closed position, and during passage to the open position controls the forward motion of the ejection element parallel to the plane of the contact surface of the first and second parts, during which the flap is retracted upon contact with the portion, and a return movement during which the flap is in the holding position and drives the portion to outside of the brewing chamber.