A method for producing a cartridge system for producing a beverage, where the cartridge system is insertable into a beverage preparation machine and has a cartridge with a reservoir filled with a beverage substance and a cartridge receptacle connected to the cartridge. The cartridge receptacle has a mixing chamber and a fluid feed opening into the mixing chamber. An aluminum sheet is provided in a first step. A main body is generated at least partially from the aluminum sheet by punching and either deep-drawing or impact extrusion in a second step. A sealing element is attached to the main body in a third step. The main body is connected to the cartridge receptacle in a fourth step.