| 摘要 |
A process for producing and dispensing brewed coffee comprises the steps of grinding, roasting and extracting unground coffee beans (20, fig. 1) contained in a coffee cartridge (20). The beans are preferably unroasted or part-roasted. The beans may be roasted by fluidized bed roasting. They may be roasted within or outside the cartridge. If roasted outside the cartridge the beans may be roasted in a roasting oven or chamber that is thermally insulated from the cartridge components. Preferably the beans are displaced from the cartridge, conveyed to the roasting oven or chamber, roasted and then returned to the cartridge chamber for grinding within the cartridge. Preferably the beans are conveyed to the roasting oven or chamber in a shuttle hopper which is moved between: (a) a first position in which its contents can be displaced by sliding of the first and/or second wall plugs; and (b) a second position in which it is thermally isolated from the cartridge components. |
