| 摘要 |
For carbonating a precursor liquid, such as water, to form a beverage, a beverage making system has a beverage precursor liquid supply (10) arranged to provide a precursor liquid and also has a cartridge chamber (3). A single cartridge (4) is provided to be received in the cartridge chamber (3). This single cartridge (4) has an internal space that is sealed and has first and second chambers (46, 47) which are isolated from each other, for example by an impermeable element (49). The first chamber (46) contains a carbon dioxide source (41), which may optionally be in solid form (41) having adsorbed carbon dioxide, arranged to emit carbon dioxide gas for use in carbonating the precursor liquid (2). The second chamber (47) contains a beverage medium (42) such as a powdered drink mix or liquid syrup, to be mixed with the precursor liquid (2) to form the beverage. The system is arranged to introduce pressurized gas into the second chamber (47) of the cartridge (4) to force beverage medium (42) out of the second chamber. A reservoir is provided in the system to receive the precursor liquid (2) from a pump and to receive carbon dioxide gas from the cartridge chamber (3) so that the precursor liquid is carbonated by dissolution of that carbon dioxide in the precursor liquid under pressure. A mixing chamber is provided wherein the beverage medium from the cartridge is mixed with the precursor liquid from the reservoir to form the beverage. |
