A method for the automated production of a coffee preparation with a coffee preparation device (1) comprising a brewing unit, the method comprising the following steps: insertion of a pre-filled cartridge (3) with a powder supply (4) comprising a plurality of, preferably compressed, powder portions (11) of ground coffee beans into a cartridge receptacle (2) of a preparation device (1); automatic or at least partially manual metering of a powder portion (11) from the powder supply (4), wherein the entire powder supply (4) is moved for this purpose, preferably displaced axially, with the assistance of metering unit (10), and then the powder portion (11) is separated from the powder supply (4); transfer of the powder portion (11) to a brewing unit of a preparation device (16); automatic preparation of the coffee in the brewing unit, using the powder portion (11) and a heated, potable fluid flowing through the powder portion in the brewing unit, more particularly under pressure; closure of the cartridge (3) in the cartridge outlet opening area (5) of the preparation device.