| 摘要 |
<p>A cartridge (1) for coffee or soluble products for producing a beverage, includes a container (2) able to contain the coffee or soluble product, a lid (6) disposed over the container so as to define a top wall for entry into the container of the hot water under pressure for formation of the beverage, a filter (4) able to be positioned inside the container above a bottom wall (20) of the container through which the beverage flows out, wherein the bottom wall of the container has a weakened, less thick central area (22), suitable to be broken by mechanical elements or by the pressure of the liquid inside the cartridge to allow delivery of the beverage, there being provided a plurality of concentric, spiral-shaped channels, ending in the less thick central area, able to cause a swirling movement of the beverage, with the consequent formation of a dense froth.</p> |
