Unit for a Coffee Device

A unit having a container module, wherein the container module comprises at least one coffee bean container and a portioning device for metering coffee beans, wherein the container module as a whole is configured for connection to a coffee apparatus, wherein said connection makes possible a metered delivery of coffee beans from the container module into a grinder of the coffee apparatus and wherein the coffee bean container is tightly closed prior to the first use and, after an opening operation, has an opening through which coffee beans enter into the portioning device, wherein, during intended use of the container module with the coffee apparatus, the coffee bean container is arranged over the portioning device, wherein the coffee bean container is coupled with the portioning device in a releasable and reconnectable manner, wherein a coupling element is arranged around the opening, said element being used for connection to the portioning device, and wherein the opening can be closed again when the coffee bean container is separated from the portioning device.