A coffee extraction apparatus includes: a first burr grinding supplied whole beans, a first burr through-hole defined in the first burr, a first burr inlet receiving the whole beans, a first burr outlet discharging coffee powder, a second burr inserted into the first burr through-hole to define a grinding space for grinding the whole beans, a first rotary part rotating the first burr, a first gear part including (i) a first main gear rotating at a fixed position and (ii) a first subordinate gear that rotates and that moves in a circumferential direction of the first rotary part according to rotation of the first main gear, an extractor that receives and mixes the coffee powder and the coffee powder and water to extract coffee liquid. Based on the first main gear rotating, the first subordinate gear is configured to connect to the first rotary part.

This invention provides a drip filter head for a beverage apparatus comprising a connected array of beverage extraction units, each unit comprising an extraction chamber, and further comprising at least one filter.

This invention provides a drip filter head for a beverage apparatus comprising a connected array of beverage extraction units, each unit comprising an extraction chamber, and further comprising at least one filter.

In pour-over brewing, a vessel containing water can be suspended over a brew basket so that the water can drain, under gravity, into the brew basket and onto the coffee, and the water level in the brew basket is used to regulate the flow of water from the vessel. A vessel that is closed, other than the mouth thereof, and containing brew-heated water, is suspended over the brew basket so that the water can drain from the mouth of the vessel into the brew basket and into the ground coffee to brew liquid coffee, which drains into a container. Rising of the water in the brew basket causes interruption of drainage of the water from the mouth of the vessel into the brew basket, and lowering of the water in the brew basket causes resumption of drainage of the water from the mouth of the vessel into the brew basket.

A machine which contains a housing (14) having a placement surface for the beverage container (13), wherein a removable brewing container (8) having a drain stub (19) and having a drain valve (10) that can be electrically or electromagnetically opened and dosed is arranged in the housing (14). The actual brewing process is automatically controlled by a control unit (11). The water is pumped by a vibrating armature pump (16) through a heating system (15) and through a water outlet in the cover (4) having an integrated temperature sensor (24) through the cover (5) into the brewing container (8). A pressure sensor (12) ensures that the water is not heated above the pressure-dependent current boiling point. The control unit (11) can be programmed by means of a control panel (7) on the housing, for at least the brewing temperature, the brewing duration, and the start of a brewing cycle. Furthermore, a radio interface and an associated antenna (9) are present, for the communication of the control unit (11) with a smartphone by means of an established communication standard such as WIFI or Bluetooth, or with a computer or laptop via the internet, such that the machine can be remotely operated.

A machine which contains a housing (14) having a placement surface for the beverage container (13), wherein a removable brewing container (8) having a drain stub (19) and having a drain valve (10) that can be electrically or electromagnetically opened and dosed is arranged in the housing (14). The actual brewing process is automatically controlled by a control unit (11). The water is pumped by a vibrating armature pump (16) through a heating system (15) and through a water outlet in the cover (4) having an integrated temperature sensor (24) through the cover (5) into the brewing container (8). A pressure sensor (12) ensures that the water is not heated above the pressure-dependent current boiling point. The control unit (11) can be programmed by means of a control panel (7) on the housing, for at least the brewing temperature, the brewing duration, and the start of a brewing cycle. Furthermore, a radio interface and an associated antenna (9) are present, for the communication of the control unit (11) with a smartphone by means of an established communication standard such as WIFI or Bluetooth, or with a computer or laptop via the internet, such that the machine can be remotely operated.

A method for generating a coffee beverage in an automatic coffee machine brewing device supplies pressurized brewing water at a brewing device brewing water inlet according to a first brewing water supply mode during a first time period. During a second time period, a brewing water parameter is determined correlating with the volume flow and/or pressure of the supplied brewing water. A mode adjustment variable is set for a second brewing water supply mode using the brewing water parameter. Brewing water is supplied at the brewing water inlet during the second time period according to the second brewing water supply mode. The mode adjustment variable defines at least one continuous mode for the second brewing water supply mode, in which the brewing water is continuously supplied, and a pulse mode for the second brewing water supply mode, in which the brewing water is supplied in pulses.

A beverage extraction device comprising an upper chamber and a lower chamber separated by a filter; wherein the upper chamber comprises a perimeter wall and an inlet and the lower chamber comprises a perimeter wall and an outlet; and wherein the perimeter wall of the upper chamber adjacent to the filter tapers inwardly, towards the filter, by no more than 10 degrees and the perimeter wall of the lower chamber tapers inwardly from adjacent to or proximal to the filter.

A beverage extraction device comprising an upper chamber and a lower chamber separated by a filter; wherein the upper chamber comprises a perimeter wall and an inlet and the lower chamber comprises a perimeter wall and an outlet; and wherein the perimeter wall of the upper chamber adjacent to the filter tapers inwardly, towards the filter, by no more than 10 degrees and the perimeter wall of the lower chamber tapers inwardly from adjacent to or proximal to the filter.

Device and methods for brewing a beverage from a heated liquid chamber are disclosed in which the kinetic energy of rising air bubbles injected into a water heating chamber or delivery tube entrains the liquid in the water heating chamber to a delivery spout.