| 摘要 |
Method for preparing a beverage or liquid food from a capsule (1) containing a material (2) with a substance to be extracted, wherein said capsule has a highly resiliently or permanently deformable flexible diaphragm (17). The method comprises the steps of forming a plurality of holes (26) distributed over the flexible diaphragm (17) and spraying water onto the flexible diaphragm (17) so as to urge it towards the material (2) inside the capsule (1) and force the water into the capsule (1) through said holes. The size of the holes formed by the piercing spikes (25) is dependent on the filling level or the compactness of the material (2) inside the capsule, thereby influencing the hydraulic pressure differential (DELTAP) between the two sides (17a, 17b) of the flexible diaphragm (17) in order to achieve automatically controlled compression of the material (2) in the capsule (1). |
