A coffee grinding machine (10) and an espresso coffee machine are described. The coffee grinding machine comprises a first grinder and second grinder cooperating with each other so as to grind coffee beans, obtaining a first dose of ground coffee during a first grinding cycle. The coffee grinding machine comprises a motor which rotates one of the grinders relative to the other one at a rotation speed. The coffee grinder machine is configured to modify the rotation speed so as to perform a second grinding cycle in which a second dose of ground coffee is obtained. The rotation speed is modified depending on quantitative information received from the espresso coffee machine and based on a coffee preparation cycle performed with said first dose of ground coffee, wherein the quantitative information may be a flow value measured in the espresso coffee machine or a brew ratio value.

A coffee machine equipped with a grinder that grinds coffee beans, and a blade that grinds the coffee beans can be replaced with a blade having a different pattern. A main body includes a drive source, first power transmission portions, and a gear portion (gear of a manual setting disc dial), a grinder unit is fitted into the main body, the grinder unit includes a second power transmission portion, and interlocking portions, and is detachable from the main body, and when the grinder unit is fitted into the main body, the second power transmission portion and the like are coupled to the first power transmission portions, and the interlocking portions are coupled to the gear portion (gear of the manual setting disc dial).

A grinder for grinding whole coffee beans into coffee grounds with automatically adjustable coarseness. The grinder comprise a burr assembly for grinding whole coffee beans, which comprises an inner burr having a side surface that is slanted and abrasive or serrated, and an outer burr surrounding the inner burr. The side surface of the inner burr and the outer burr define a gap. The grinder comprise a main motor configured to provide a first rotational movement to the inner burr. A second motor is configured to adjust a vertical position of the inner burr relative to the outer burr, wherein changes in the vertical position of the inner burr relative to the outer burr changes the gap between the inner burr and the outer burr. A coarseness of the coffee grounds depends on the gap between the inner burr and the outer burr.

A grind size adjustment assembly, in particular a telemetric grind size adjustment assembly, has at least one grinder (2) for grinding coffee beans and a grind size adjustment device of the at least one grinder. The grind size adjustment assembly also has at least one remote control unit, which adjusts a grind size of the at least one grinder in operative connection with the grind size adjustment device of the at least one grinder.

A grind size adjustment assembly, in particular a telemetric grind size adjustment assembly, has at least one grinder (2) for grinding coffee beans and a grind size adjustment device of the at least one grinder. The grind size adjustment assembly also has at least one remote control unit, which adjusts a grind size of the at least one grinder in operative connection with the grind size adjustment device of the at least one grinder.

A foodstuff dispensing system is provided in which a foodstuff dispensing hopper comprises a gate rotatably mounted adjacent a bottom opening for selectively opening and closing the bottom opening. The hopper further comprises coupling means for detachably and rotationally coupling the hopper to the apparatus, and an interlock mechanism for interoperating with the gate to enable rotation of the bottom opening relative to the gate into an open position when the coupling means is being rotationally coupled to the apparatus and to enable rotation of the bottom opening relative to the gate into a closed position when the coupling means is being counter-rotationally decoupled from the apparatus.

Disclosed is a coffee grinder having improved accuracy of burr alignment for grinding uniformity. The coffee grinder having improved accuracy of burr alignment for grinding uniformity of the present disclosure comprises: a lower flat burr carrier having a rotary base part rotatably coupled to a grinder body and a lower flat burr part coupled to the rotary base part so as to rotate together with the rotary base part and having a first grinding blade; and an upper flat burr carrier that is coupled to a fixed coupling part provided on the grinder body and grinds introduced coffee beans together with the first grinding blade, wherein the lower flat burr part is coupled to the side of the rotary base part.

Disclosed is a coffee grinder having improved accuracy of burr alignment for grinding uniformity. The coffee grinder having improved accuracy of burr alignment for grinding uniformity of the present disclosure comprises: a lower flat burr carrier having a rotary base part rotatably coupled to a grinder body and a lower flat burr part coupled to the rotary base part so as to rotate together with the rotary base part and having a first grinding blade; and an upper flat burr carrier that is coupled to a fixed coupling part provided on the grinder body and grinds introduced coffee beans together with the first grinding blade, wherein the lower flat burr part is coupled to the side of the rotary base part.

A coffee grinder-doser including a grinder-doser body, an electric motor, at least one driven grinder operatively connected to the electric motor, at least one fixed grinder, operatively separate from the electric motor, the driven and fixed grinders having respective teeth mutually facing and spaced from each other with respect to an adjustment direction X-X, where at least one out of the driven and fixed grinders is movable with respect to the other along the adjustment direction X-X, where the grinder-doser includes an automatic actuator operatively connected by transmission means to the driven grinder and/or fixed grinder so as to adjust and modify the mutual distance between the teeth thereof along the adjustment direction X-X.

A coffee grinder-doser including a grinder-doser body, an electric motor, at least one driven grinder operatively connected to the electric motor, at least one fixed grinder, operatively separate from the electric motor, the driven and fixed grinders having respective teeth mutually facing and spaced from each other with respect to an adjustment direction X-X, where at least one out of the driven and fixed grinders is movable with respect to the other along the adjustment direction X-X, where the grinder-doser includes an automatic actuator operatively connected by transmission means to the driven grinder and/or fixed grinder so as to adjust and modify the mutual distance between the teeth thereof along the adjustment direction X-X.