The invention relates to a cartridge receptacle for producing a beverage by means of a cartridge which comprises a pot reservoir which is filled with a beverage substance and is closed by a sealing element, in particular a sealing film, wherein the cartridge receptacle has a connecting region for connection to the cartridge, and the cartridge receptacle with the cartridge can be inserted into Got a beverage preparation machine, wherein the cartridge receptacle has a mixing chamber, which can be brought into fluid connection to the reservoir, and a fluid supply, which opens into the mixing chamber, for introducing liquid into the mixing chamber, wherein the cartridge receptacle has a cartridge unloading device for at least partially transferring the beverage substance from the reservoir into the mixing chamber, wherein the cartridge receptacle has a beverage outlet for conducting a beverage out of the mixing chamber, in particular directly, into a beverage container, wherein the cartridge receptacle also has a gas outlet for conducting a gas, in particular carbon dioxide, released in the mixing chamber out of the cartridge receptacle.