Machine for processing liquid or semi-liquid food products

A machine for processing liquid or semi-liquid food products, comprising:

• at least one container configured for containing the liquid or semi-liquid food products to be processed and including walls having an outside surface;
• a stirrer mounted inside the at least one container;
• an actuator connected to the stirrer to set the stirrer in rotation about a mixing axis;
• a dispenser connected to an interior of the at least one container to allow extracting the liquid or semi-liquid food products to be processed;
• a refrigeration system, comprising:
• a closed circuit configured for circulating a first heat exchanger fluid, an evaporator operatively connected with the at least one container, a compressor, a condenser and a throttle element, the first heat exchanger fluid flowing in the closed circuit through the following:
• the evaporator, the compressor, the condenser and the throttle element, in that order;
• a control unit configured to control at least the actuator;
• wherein the evaporator is in contact with the outside surface of the walls of the at least one container to cool the walls of the at least one container,
• a cooling chamber for cooling the at least one container and extending around the at least one container, the cooling chamber being configured to enclose the evaporator within the cooling chamber and being permeated by a second heat exchanger fluid, which increases a thermal inertia of the evaporator;
• and
• a valve, mounted on an outside surface of the cooling chamber at an upper portion of the cooling chamber, the valve being in fluid communication with the cooling chamber and being configured to allow the second heat exchanger fluid to flow into the cooling chamber.