The present invention relates to a beverage preparation device designed for preparing a beverage upon injection of liquid into an ingredients-containing cartridge, the device comprising a pump (106) coupled between a fluid inlet (102) and a fluid outlet (104) for pumping the fluid from said inlet to said outlet, and a processing unit (108) for the pump (106) adapted to control an operation of the pump in response to an electrical energy (121) having a wave form such that the pump is energized only throughout selected half cycles (a1,a2,a3 . . . an) of the wave form of the electrical energy, wherein the processing unit (108) is configured to determine the respective selected half cycles (a1,a2,a3 . . . an) in which the pump is energized based on a target ratio (TR) of a target flow rate (FR) and a predefined maxim-um flow rate of the pump, and based on the calculation of an activation ratio (AR) of the number of past half cycles (A) for which the pump was energized to the number of overall half cycles (B) during a respective beverage preparation process. The present invention further relates to a method for controlling a pump in a beverage preparation device.

A device for notifying a manager terminal of an event occurring in a coffee making device and an operating method thereof according to the present invention may enable a manager to visit an unmanned coffee shop only when a coffee making device needs to be managed and manage the coffee making device by determining that a first inventory shortage event for first inventory occurs when first inventory among the materials included in inventory data received from the coffee making device making coffee corresponding to each of the coffee menu items is larger than a first threshold inventory value and is equal to or less than a second threshold inventory value among threshold inventory values for the first inventory, determining that a second inventory shortage event for the first material occurs when the first inventory is equal to or less than the first threshold inventory value, transmitting an event occurrence message for the first inventory shortage event to a first manager terminal of a first manager who is a main manager of the coffee making device among a plurality of manager terminals, transmitting an event occurrence message for the second inventory shortage event to a second manager terminal of a second manager who is a senior manager of the first manger, and when an event occurrence confirmation message is not received from the first manager terminal within a predetermined first time after the event occurrence message for the first inventory shortage event is transmitted to the first manager terminal, transmitting the event occurrence message for the first inventory shortage event to the second manager terminal.

Devices and methods for infusing liquids and/or brewing beverages are described. The present invention relates to an apparatus for brewing beverages comprising a vessel, said vessel comprising a sealable chamber for holding a brewing material and a liquid, and a filter assembly connected to the sealable chamber; a liquid supply and conduit for introducing at least a portion of said liquid supply into said sealable chamber; and a vacuum source and conduit for reducing pressure in said sealable chamber.

One embodiment of the present disclosure provides a beverage brewing system, including: a brewing chamber configured to hold a brewing fluid; a brew material filter within the brewing chamber; a vacuum source and a vent valve each coupled to the brewing chamber, the vacuum source and the vent valve being configured to be actuated consecutively; and a drain valve coupled to the brewing chamber.

One embodiment of the present disclosure provides a beverage brewing system, including: a brewing chamber configured to hold a brewing fluid; a brew material filter within the brewing chamber; a vacuum source and a vent valve each coupled to the brewing chamber, the vacuum source and the vent valve being configured to be actuated consecutively; and a drain valve coupled to the brewing chamber.

A coffee machine for the preparation of pressure-extracted coffee with a low particle content is provided. The coffee machine differs from known machines for pressure-extraction of coffee by comprising a filter element for reducing the particle content of coffee, which filter element is disposed downstream of the percolating sieve and is connected fluidically to the percolating sieve and to the outflow. By means of the filter element, coffee extracted by pressure in the percolating unit can be filtered before dispensing the outflow so that suspended particles and emulsified oils of a specific size are separated from the coffee by the filter element and a new coffee is produced. In addition, the coffee machine can prepare standard pressure-extracted coffee since the coffee from the percolating unit can also be guided past the filter element, i.e. need not flow necessarily via the filter element to the outflow.

A coffee machine for the preparation of pressure-extracted coffee with a low particle content is provided. The coffee machine differs from known machines for pressure-extraction of coffee by comprising a filter element for reducing the particle content of coffee, which filter element is disposed downstream of the percolating sieve and is connected fluidically to the percolating sieve and to the outflow. By means of the filter element, coffee extracted by pressure in the percolating unit can be filtered before dispensing the outflow so that suspended particles and emulsified oils of a specific size are separated from the coffee by the filter element and a new coffee is produced. In addition, the coffee machine can prepare standard pressure-extracted coffee since the coffee from the percolating unit can also be guided past the filter element, i.e. need not flow necessarily via the filter element to the outflow.

A tamping augur may be controlled in various ways to obtain a consistent fill height and uniformity in the distribution of coffee grinds in a portafilter.

A tamping augur may be controlled in various ways to obtain a consistent fill height and uniformity in the distribution of coffee grinds in a portafilter.

A coffee maker includes an extractor configured to receive ground coffee and water and to extract coffee from the ground coffee, and a dispenser configured to supply water to the ground coffee in the extractor. The dispenser includes an arm that is rotatably disposed vertically above an inlet of the extractor and includes a nozzle configured to supply water to the ground coffee in the extractor, a first actuator configured to rotatably support the arm and to rotate the arm about a center of the inlet along an edge of the inlet, and a second actuator connected to the arm and configured to rotate the arm relative to the first actuator.