A method for use of an apparatus comprises: a grinding step, a cleaning step, and a de-ionizing step; the apparatus comprises a receptacle to contain the product to be ground and provided with an unloading aperture; a fixed grinder; a mobile grinder rotatable around a rotation axis connectable to a drive motor; a cleaning device connected to the mobile grinder; a grinding chamber in which the fixed grinder, the mobile grinder and the cleaning device are located and provided with a discharge aperture to discharge the ground product.

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 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 including a grinder for grinding coffee beans, and provides a coffee machine that collects wastes such as chaff and fine powder. The coffee machine including: a grinder configured to grind coffee beans; a separation unit configured to separate a waste from coffee beans; and a reservoir unit configured to store the waste separated from the coffee beans in the separation unit, in which the reservoir unit includes an outer case body and an inner case body inside the outer case body, and the inner case body has, in a circumferential wall thereof, an opening connected to the inside of the outer case body.

A coffee machine including a grinder for grinding coffee beans, and provides a coffee machine that collects wastes such as chaff and fine powder. The coffee machine including: a grinder configured to grind coffee beans; a separation unit configured to separate a waste from coffee beans; and a reservoir unit configured to store the waste separated from the coffee beans in the separation unit, in which the reservoir unit includes an outer case body and an inner case body inside the outer case body, and the inner case body has, in a circumferential wall thereof, an opening connected to the inside of the outer case body.

A coffee machine provided with a second grinder for grinding coffee beans, and provides a coffee machine that is controlled in consideration of a state for grinding coffee beans in the grinder. A coffee machine including a second grinder for grinding coffee beans, in which an input amount of coffee beans to be put into the second grinder is controlled.

A coffee machine provided with a second grinder for grinding coffee beans, and provides a coffee machine that is controlled in consideration of a state for grinding coffee beans in the grinder. A coffee machine including a second grinder for grinding coffee beans, in which an input amount of coffee beans to be put into the second grinder is controlled.

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 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 coffee brewing system and method that includes a brew chamber that holds a brew solution during a brew cycle and dispenses the brew solution; a water system that dispenses water into the brew chamber; a content sensing system that measures the brew solution contents added to the brew chamber; a temperature control system with a heating element and a temperature sensor; at least one recirculating processing loop with a particle monitor system, wherein the recirculating processing loop circulates brew solution extracted from the brew chamber; and a control system that is communicatively coupled to the content sensing system, the temperature control system and the particle monitor system during a brew cycle, wherein the control system controls a brew cycle based on a selected a specified taste profile.