A machine for processing liquid or semi-liquid food products, comprising: - a container holding the product to be dispensed and provided with a dispenser for the product; - a stirrer, located inside the container, the stirrer rotating about a mixing axis to mix the product to be dispensed; - an actuator connected to the stirrer to set the stirrer in rotation about the mixing axis; - a refrigeration system, comprising: a closed circuit configured to circulate a primary heat exchanger fluid, an evaporator associated with the container, a compressor, at least one first air condenser and a throttle element, the primary heat exchanger fluid flowing along the closed circuit through the following, in succession: the evaporator, the compressor; the at least one first air condenser and the throttle element; - a control unit; the machine being characterized in that the refrigeration system also comprises: - at least one second condenser in which the primary heat exchanger fluid and a secondary heat exchanger fluid flow and which is configured to allow heat exchange between the primary heat exchanger fluid and the secondary heat exchanger fluid, the second condenser being located downstream of the compressor; regulating means for regulating the flow of the primary heat exchanger fluid and operating on the first condenser and on the second condenser to regulate the flow of fluid in the first condenser and in the second condenser, respectively, and in that the control unit is configured to drive the regulating means in such a way as to regulate the flow of primary heat exchanger fluid in the first and in the second condenser (104, 106) as a function of an operating parameter of the machine, wherein the primary heat exchanger fluid and the secondary heat exchanger fluid flow inside two separate circuits. - a container holding the product to be dispensed and provided with a dispenser for the product; - a stirrer, located inside the container, the stirrer rotating about a mixing axis to mix the product to be dispensed; - an actuator connected to the stirrer to set the stirrer in rotation about the mixing axis; - a refrigeration system, comprising: a closed circuit configured to circulate a primary heat exchanger fluid, an evaporator associated with the container, a compressor, at least one first air condenser and a throttle element, the primary heat exchanger fluid flowing along the closed circuit through the following, in succession: the evaporator, the compressor; the at least one first air condenser and the throttle element; - a control unit; the machine being characterized in that the refrigeration system also comprises: - at least one second condenser in which the primary heat exchanger fluid and a secondary heat exchanger fluid flow and which is configured to allow heat exchange between the primary heat exchanger fluid and the secondary heat exchanger fluid, the second condenser being located downstream of the compressor; - at least one second condenser in which the primary heat exchanger fluid and a secondary heat exchanger fluid flow and which is configured to allow heat exchange between the primary heat exchanger fluid and the secondary heat exchanger fluid, the second condenser being located downstream of the compressor;