A grinder has first and second body parts rotatable to each other. The first and second body parts engage the outer and inner burrs, respectively. A supporting flange in the second body part forms a seat to receive the outer burr. The outer burr is pressed toward the supporting flange to localize the outer burr against undesirable forces generated during grinding. A ring-shaped plate is sandwiched between the supporting flange and the outer burr. The outer burr presses on a bearing surface of the plate. The bearing surface is more resistant to abrasion than the supporting flange, advantageously reducing wear debris generation due to abrasion by the outer burr. Furthermore, a shaft engaging the inner burr is shaped as a triangular column for more effectively transmitting a received torque to the inner burr, allowing a plastic shaft to be used so as to reduce the manufacturing cost.

A unit of a coffee apparatus, in particular a coffee machine for brewing a coffee drink, includes a coffee bean container for storing the coffee beans, a portioner for portioning the coffee beans for an individual portion, and a grinder for grinding the portioned coffee beans. The coffee bean container and the portioner are formed in a common container module. The unit has a module receptacle, by which the container module can be connected during use and removed after use, and the container module has settings for a portion amount and a degree of grinding, which can be selected by the user. The portion amount setting influences the portioner and the degree of grinding setting influences the grinder. A simple, cost-effective and easy-to-use information exchange module between coffee container and coffee apparatus is thereby created.

A device for grinding coffee beans (12) includes a grinding member (14) configured to grind coffee beans (12) and produce a ground coffee powder (15). A transit chamber (16) receives the ground coffee powder (15). A discharge member (18) is configured to discharge the ground coffee powder (15) arriving from the transit chamber (16) toward the outside of the device. An air-powered powder removal member (20) removes the ground coffee powder (15) from the grinding member (14) and from the transit chamber (16).

A device for grinding coffee beans (12) includes a grinding member (14) configured to grind coffee beans (12) and produce a ground coffee powder (15). A transit chamber (16) receives the ground coffee powder (15). A discharge member (18) is configured to discharge the ground coffee powder (15) arriving from the transit chamber (16) toward the outside of the device. An air-powered powder removal member (20) removes the ground coffee powder (15) from the grinding member (14) and from the transit chamber (16).

The mill for spice products, in particular such as cinnamon sticks, houses a reservoir for storing the spice product. The reservoir communicates through a passage, with a grinding mechanism. The reservoir includes a mechanism for fragmenting the spice product. The mechanism for fragmenting are defined by a crusher of the spice product.

The mill for spice products, in particular such as cinnamon sticks, houses a reservoir for storing the spice product. The reservoir communicates through a passage, with a grinding mechanism. The reservoir includes a mechanism for fragmenting the spice product. The mechanism for fragmenting are defined by a crusher of the spice product.

A cold brew coffee extraction device includes a container having a first chamber for receiving cold water. A filtering cup is mounted in the first chamber and includes a second chamber intercommunicating with the first chamber. The second chamber receives coffee powders and includes a second opening. The filtering cup further includes a third opening at a lower end thereof and receiving a filter. A first guiding tube includes a first end intercommunicating with the second chamber and a second end located outside of the container. A pump is disposed outside of the container and is connected to the second end of the first guiding tube. A controller is electrically connected to the pump to control operation of the pump to thereby supply air into or suck air out of the first guiding tube, thereby controlling a water level of the cold water in the first chamber.

The coffee machine (1) comprises at least a control unit (3), a pump (4) for supplying infusion water, a boiler (6) for heating the (8) comprising at least a selector (9) for a beverage and/or a ground coffee dose, the coffee mill (2) comprising in turn a hopper (10) for coffee beans, a rotating grinder (11) and a non-rotating grinder (12), a motor (13) for directly or indirectly driving the rotating grinder (11) in relative rotation, and means for adjusting the distance between the grinders (11, 12), there being further provided a first sensor (23) for detecting the number of turns and/or speed of the motor and/or of the rotating grinder (11), and a second sensor (22) for detecting the distance between the grinders (11, 12), the control unit (3) storing an algorithm for calculating the correct dose of ground coffee, the calculation algorithm being configured to receive as an input from the selector (9) the value of ground coffee selected and from the second sensor (22) the value of the distance between the grinders (11, 12) so as to automatically generate as an output the value of the number of total turns that the motor (13) must perform to obtain the correct dose of ground coffee, the control unit (3) being configured to receive as an input from the first sensor (23) the current value of the number of turns and/or of the speed of the motor (13) and/or of the rotating grinder (11) so as to produce a stop signal for stopping the motor (13) upon reaching said number of total turns.

The coffee machine (1) comprises at least a control unit (3), a pump (4) for supplying infusion water, a boiler (6) for heating the (8) comprising at least a selector (9) for a beverage and/or a ground coffee dose, the coffee mill (2) comprising in turn a hopper (10) for coffee beans, a rotating grinder (11) and a non-rotating grinder (12), a motor (13) for directly or indirectly driving the rotating grinder (11) in relative rotation, and means for adjusting the distance between the grinders (11, 12), there being further provided a first sensor (23) for detecting the number of turns and/or speed of the motor and/or of the rotating grinder (11), and a second sensor (22) for detecting the distance between the grinders (11, 12), the control unit (3) storing an algorithm for calculating the correct dose of ground coffee, the calculation algorithm being configured to receive as an input from the selector (9) the value of ground coffee selected and from the second sensor (22) the value of the distance between the grinders (11, 12) so as to automatically generate as an output the value of the number of total turns that the motor (13) must perform to obtain the correct dose of ground coffee, the control unit (3) being configured to receive as an input from the first sensor (23) the current value of the number of turns and/or of the speed of the motor (13) and/or of the rotating grinder (11) so as to produce a stop signal for stopping the motor (13) upon reaching said number of total turns.

A coffee grinder has a housing that includes a ring burr, a shaft extending through the ring burr, a frustoconical burr, and an interlocking plug. An internal bore of the frustoconical burr has an upper cylindrical surface adjacent the top end, an interlocking portion adjacent the bottom edge, and a tapered side surface. The interlocking plug is shaped to extend through the internal bore of the frustoconical burr, and includes an upper cylindrical portion that fits through the upper cylindrical surface, and a lower portion that includes a sidewall surface to which is also tapered such that the sidewall surface interlocks with the side surface of the frustoconical burr.