A machine for making liquid or semi-liquid products, including a first container adapted to contain a basic mixture, having an inside surface and an outside surface and equipped with a stirrer disposed inside the first container; a thermodynamic system comprising a circuit for circulating a heat exchanger fluid and a first heat exchanger associated, in use, with walls of the first container, the first heat exchanger is defined by at least one element which is fixable, in use, to the outside surface of the first container, having an open cavity, extending uninterruptedly and defining, when coupled with the outside surface, a channel for circulating heat exchanger fluid, the element also having at least one inlet and one outlet for the heat exchanger fluid.

A heat exchanger includes a first tube extending along a central axis. The first tube defines a chamber that contains a first medium. A corrugated sheath of the heat exchanger is disposed radially outward from and extends circumferentially about the outer face for transferring heat through the inner tube.

There is provided a frozen food product, such as frozen juice, and the method of providing same. This involves cooling the food product, such as a juice, to a slurry temperature within a freezing temperature range for the juice to provide a slurry, the juice slurry comprising a liquid juice component and a frozen juice component; providing the juice slurry to a container; and freezing the juice slurry within the container.

An expansion evaporator includes a heat exchanger and a replaceable freezer cylinder detachably received within a receiving channel of the heat exchanger, wherein the replaceable freezer cylinder has a feeding channel for raw material feeding therethrough to thermally communicate with the heat exchanger so as to form a frozen product within the feeding channel. The replaceable freezer cylinder is detached from the heat exchanger for cleaning purpose as the raw material is not contacted with the heat exchanger.

A cartridge-type container usable in a machine for the production of ice cream includes a tub comprising a bottom wall and a lateral wall which define a chamber for working and/or preserving the ice cream provided with an aperture, and a lid configured to close the aperture.

An expansion evaporator includes a heat exchanger and a replaceable freezer cylinder detachably received within a receiving channel of the heat exchanger, wherein the replaceable freezer cylinder has a feeding channel for raw material feeding therethrough to thermally communicate with the heat exchanger so as to form a frozen product within the feeding channel. The replaceable freezer cylinder is detached from the heat exchanger for cleaning purpose as the raw material is not contacted with the heat exchanger.

A refrigeration subsystem removably received within a base machine to cool an object. The subsystem includes a body with an opening that receives the object. An evaporator thermally communicates with the object, which is cooled by refrigerant flowing through the evaporator. A compressor receives the refrigerant downstream of the evaporator and increases a refrigerant pressure. A condenser receives the refrigerant downstream of the compressor, which cools the refrigerant. An expansion device receives the refrigerant downstream of the condenser and decreases its pressure, the evaporator being downstream from the expansion device. A refrigerant circuit fluidly couples the evaporator, compressor, condenser, and expansion device such that the refrigerant flows therebetween, all of which are coupled to the body and move together therewith. The refrigerant circuit forms a closed loop that remains unbroken when the body of the refrigerant subsystem is removed from the base machine.

Systems and methods have demonstrated the capability of rapidly cooling the contents of pods containing the ingredients for food and drinks.

Disclosed herein are methods, systems, and apparatuses for producing frozen comestible products with entrained gas. The systems and apparatuses may function for long periods of time without cleaning. The systems and apparatuses may be used in producing soft-serve products entrained with a gas including soft-serve ice cream, soft-serve frozen yogurt, frozen pureed fruit, sorbet, soft-serve frozen custard, and other foods capable of being made into soft-serve products. An overrun control module, which may include a gas regulator or a pressure switch, may regulate quantities of a freezable comestible mixture and a compressed gas that pass through to an accumulator, where the gas becomes entrained in (e.g., dissolves in or becomes suspended in) the freezable comestible mixture. The freezable comestible mixture entrained with a gas may pass to the freezing chamber, which produces a frozen comestible product entrained with a gas. The system may be maintained at a state of overpressurization to reduce or eliminate environmental air and environmental contaminants from entering the system, which may increase the amount of time between cleanings.

A method of using a frozen food product dispensing machine includes producing, by the frozen food product dispensing machine, a frozen food product, and dispensing, by the frozen food product dispensing machine, the frozen food product through a nozzle passage of a nozzle coupled to the frozen food product dispensing machine. The nozzle defines a food product inlet fluidly coupled to the frozen food product dispensing machine and a food product outlet. The nozzle passage extends between the food product inlet and the food product outlet. The method includes introducing, by a cleaning fluid source, a cleaning fluid into the nozzle passage through a cleaning fluid inlet in the nozzle. The cleaning fluid inlet is fluidly coupled to the nozzle passage between the food product inlet and the food product outlet.