System and method for grinding coffee beans and kit for a coffee grinder

A method for grinding coffee beans by means of a system for grinding coffee beans, the system comprising:

• a coffee grinder comprising:
• a grinding chamber,
• grinding members arranged in the grinding chamber and configured to grind coffee beans and obtain ground coffee,
• a supply duct placed in communication with the grinding chamber and having a supply opening, the supply duct being configured to convey coffee beans from the supply opening to the grinding chamber,
• a container comprising:
• a cavity adapted to contain a dose of coffee beans to be supplied into the supply duct through the supply opening,
• a loading and unloading opening, placed in communication with the cavity, configured to allow coffee beans to be loaded into the cavity and coffee beans to be unloaded from the cavity into the supply opening,
• wherein the system comprises coupling members configured to removably couple the container to the supply duct of the coffee grinder so that, when coupled, the cavity of the container is in fluid communication with the grinding chamber through the supply opening and the loading and unloading opening,
• and wherein the container comprises pumping members made of elastomeric material and configured to be elastically deformed, the elastic deformation of said pumping members generating an air flow directed from the cavity of the container to the grinding chamber when the container is coupled to the supply duct by means of the coupling members,
• the method comprising the steps of:
• at least partially filling the cavity of the container with a dose of coffee beans,
• coupling the container to the supply duct by means of the coupling members so as to pour into the supply opening of the supply duct the dose of coffee beans contained in the cavity of the container,
• operating the grinding members of the coffee grinder to grind the dose of coffee beans supplied into the supply duct,
• when the grinding of the supplied dose of coffee beans is ended or during the grinding step, acting on the container coupled to the supply duct to elastically deform the pumping members and generate an air flow directed from the cavity of the container and to the grinding chamber.