System for preparing a predetermined quantity of beverage suitable for consumption using an extractable product, comprising: an exchangeable capsule; and an apparatus comprising a fluid dispensing device for supplying an amount of a fluid, such as water, under a pressure of at least six bar to the exchangeable capsule, and a receptacle for holding the exchangeable capsule; wherein the exchangeable capsule comprises a circumferential first wall, a second wall closing the circumferential first wall at a first end, and a third wall closing the circumferential first wall at a second, open, end opposite the second wall, wherein the first, second and third wall (14, 16, 20) enclose an inner space comprising the extractable product, wherein, in use, the third wall forms an outermost boundary of the capsule in an axial direction thereof, wherein the fluid dispensing device is arranged for supplying the fluid to the extractable product under the pressure of at least 6 bars through the second wall for forming the beverage; and wherein the receptacle comprises a support surface, and the third wall is arranged to abut against the support surface for draining the prepared beverage from the capsule through the third wall and through the support surface, wherein the support surface comprises channel shaped grooves in a side facing the third wall, for draining the prepared beverage from the capsule through the grooves and the support surface comprises, between the channel shaped grooves, ridges against which the third wall, in use, abuts, and wherein the third wall is flexible sheet-shaped perforate and/or porous and comprises filtering paper or a nonwoven filtering material, characterized in that the second wall is formed by: a flexible porous sheet, such as a sheet of filtering paper, a flexible foil, such as a polymeric film, provided with a plurality of entrance openings, or wherein the second wall is substantially rigid and comprises a plurality of entrance openings. an exchangeable capsule; and an apparatus comprising a fluid dispensing device for supplying an amount of a fluid, such as water, under a pressure of at least six bar to the exchangeable capsule, and a receptacle for holding the exchangeable capsule; wherein the exchangeable capsule comprises a circumferential first wall, a second wall closing the circumferential first wall at a first end, and a third wall closing the circumferential first wall at a second, open, end opposite the second wall, wherein the first, second and third wall (14, 16, 20) enclose an inner space comprising the extractable product, wherein, in use, the third wall forms an outermost boundary of the capsule in an axial direction thereof, wherein the fluid dispensing device is arranged for supplying the fluid to the extractable product under the pressure of at least 6 bars through the second wall for forming the beverage; and wherein the receptacle comprises a support surface, and the third wall is arranged to abut against the support surface for draining the prepared beverage from the capsule through the third wall and through the support surface, wherein the support surface comprises channel shaped grooves in a side facing the third wall, for draining the prepared beverage from the capsule through the grooves and the support surface comprises, between the channel shaped grooves, ridges against which the third wall, in use, abuts, and wherein the third wall is flexible sheet-shaped perforate and/or porous and comprises filtering paper or a nonwoven filtering material, characterized in that the second wall is formed by: a flexible porous sheet, such as a sheet of filtering paper, a flexible foil, such as a polymeric film, provided with a plurality of entrance openings, or wherein the second wall is substantially rigid and comprises a plurality of entrance openings. a flexible porous sheet, such as a sheet of filtering paper, a flexible foil, such as a polymeric film, provided with a plurality of entrance openings, or wherein the second wall is substantially rigid and comprises a plurality of entrance openings.