Disclosed is a coffee beverage brewing method to provide an improved brew flavour. The method comprises the steps of providing the capsule (1) as a closed capsule with a capsule wall, which has a covering surface on the extraction side and a covering surface on the injection side and a circumferential lateral surface extending between the extraction-side covering surface and the injection-side covering surface, introducing the capsule into a brewing module with an injector for introducing a brewing liquid into the capsule and a discharging device for discharging a brewed product, wherein the injector comprises at least one injection-side perforation element (12) and the discharging device comprises at least one extraction-side perforation element, closing a brewing chamber of the brewing module so that the at least one injection-side perforation element pierces the injection-side covering surface along a cutting line, introducing under pressure a brewing liquid into the region between the injection-side supporting surface and the injection-side covering surface, in such a manner that the pressure of the liquid causes the extraction-side covering surface to be displaced towards the interior of the capsule whilst an encompassing capsule seal (43) holds the circumferential lateral surface, and brewing liquid enters the capsule interior, and maintaining the pressure on the brewing liquid at least until the brewed product emerges from discharge openings produced in the extraction-side covering surface as a result of piercing by the at least one extraction-side perforation element.
