An electric heater including a metal body, in which a first pipe and a second pipe are provided in the metal body. The first pipe and second pipe are mutually distinct so as to be crossed by two distinct flows of fluid to be heated. A first heating stretch, a second heating stretch and a third heating stretch are arranged in the metal body. The first pipe and the second pipe are arranged between the first heating stretch and the second heating stretch. The third heating stretch is proximal to the second pipe and distal from the first pipe. The second pipe is arranged between the first pipe and the third heating stretch.

A heat exchanger includes a body placed inside a discharge container of a solenoid valve of a machine for coffee dispensing. The body includes: a first portion presenting a collection cavity of a hot waste fluid coming from the solenoid valve of the machine and defining a first surface arranged to come into contact with the hot waste fluid and a second surface facing the opposite side from the first surface; and a second portion presenting a primary surface in contact with the second surface of the first portion and a secondary surface opposed to the primary surface, arranged to come into contact with a heat exchange fluid of the machine having a different temperature from the temperature of the hot waste fluid. The first and second portions allow heat exchange, by conduction, between the hot waste fluid and the heat exchange fluid of the machine.

A heat exchanger includes a body placed inside a discharge container of a solenoid valve of a machine for coffee dispensing. The body includes: a first portion presenting a collection cavity of a hot waste fluid coming from the solenoid valve of the machine and defining a first surface arranged to come into contact with the hot waste fluid and a second surface facing the opposite side from the first surface; and a second portion presenting a primary surface in contact with the second surface of the first portion and a secondary surface opposed to the primary surface, arranged to come into contact with a heat exchange fluid of the machine having a different temperature from the temperature of the hot waste fluid. The first and second portions allow heat exchange, by conduction, between the hot waste fluid and the heat exchange fluid of the machine.

Machine to prepare hot beverages that uses means of heating a secondary liquid, which transfers temperature to the primary liquid that is used to prepare the hot drink. The machine is fully operated through software that allows the pressure and temperature parameters of each drink prepared in the machine to be saved and accurately reproduced.

Machine to prepare hot beverages that uses means of heating a secondary liquid, which transfers temperature to the primary liquid that is used to prepare the hot drink. The machine is fully operated through software that allows the pressure and temperature parameters of each drink prepared in the machine to be saved and accurately reproduced.

A coffee brewer contains a brewing unit in which coffee grounds having been poured in are compressed by a plunger driven by an actuator. Heated water flows through the compressed coffee grounds. A control device controls the actuator in accordance with signals of an angle of rotation sensor. The control device first moves the plunger against a stop in an ejection position to calibrate the sensor, then moves the plunger by a predetermined distance in a downwards direction into a pouring-in position. Afterwards the control device moves the plunger by a second distance into the brewing position, a length of the predetermined distance and the second distance corresponds to a number of pulses of the sensor which are stored in the memory. The control device subsequently moves the plunger by a third distance back into the ejection position in which the coffee grounds are removed from the plunger.

A heat generating assembly (13), aiming to solve the problem of low heating efficiency in the related art such as a coffee machine. The heat generating assembly (13) includes a water inlet (133), a water outlet (134), and a heat generating body (135) provided between the water inlet (133) and the water outlet (134). The heat generating body (135) includes a heating film (132), a bottom cover (131) for the heating film, the heating film (132) is capable of generating heat upon energization to heat liquid flowing through the heat generating body (135). The heat generating assembly (13) uses film-type heating technology, the heating efficiency is high and accurate control of temperature can be realized.

A heat generating assembly (13), aiming to solve the problem of low heating efficiency in the related art such as a coffee machine. The heat generating assembly (13) includes a water inlet (133), a water outlet (134), and a heat generating body (135) provided between the water inlet (133) and the water outlet (134). The heat generating body (135) includes a heating film (132), a bottom cover (131) for the heating film, the heating film (132) is capable of generating heat upon energization to heat liquid flowing through the heat generating body (135). The heat generating assembly (13) uses film-type heating technology, the heating efficiency is high and accurate control of temperature can be realized.

A system and method. The system may include a beverage machine including a pump, heater, a sensor, and a processor. The pump may be configured to pump fluid including gas or liquid. The heater may be configured to heat the fluid. The sensor may be implemented downstream of the pump and the heater. The sensor may be configured to sense a pressure, a flow rate, a steam quality, or a temperature of the heated fluid and to output sensor data including information of the pressure, the flow rate, the steam quality, or the temperature of the heated fluid. The processor may be communicatively coupled to the heater, the pump, and the sensor. The processor may be configured to: receive the sensor data; control operation of the pump or the heater; and based on the sensor data, adjust an operational parameter of the pump or the heater.

A machine (100) for espresso coffee of the piston type is described. The machine comprises a cylinder (1), a piston (2) which is configured to perform a translation movement in said cylinder, a rod (4) having an end cooperating with said piston (2), an operating lever (5), a spring (3), a member (6) configured to cooperate with said rod (4) and to move said piston (2) from a first position to a second position in which said spring (3) is at least partially compressed, and an opening (71) for introducing water into said cylinder (1) configured so as to introduce water above the piston (2).