Patent ID: 7383763

Claim:
An assembly for use in a coffee machine for preparing coffee, comprising a container having a bowl-shaped inner space bounded by a bottom having at least one outlet opening, said opening being smaller than the inner space and at least one vertical sidewall and, included in the inner space of the container, a separate and replaceable pill-shaped sealed pouch manufactured from filtering paper and filled with ground coffee forming a coffee bed in the pouch, the pouch comprising a disk-shaped top sheet and a disk-shaped bottom sheet which are interconnected adjacent their longitudinal edges, the interconnected parts of the top and bottom sheets forming an annular sealing seam wherein the pouch rests on the bottom and extends over the bottom, while provided in the bottom are a number of channel-shaped grooves extending in radial direction of the bowl-shaped inner space to the outlet opening and, in use, configured to allow hot water to be fed under pressure to a top side of the container by means of the coffee machine, causing the hot water to be pressed from a top side of the pouch through the pouch for extracting the ground coffee included in the pouch, the coffee extract formed flowing from a bottom side of the pouch and from the container via the outlet the bottom comprises an outer horizontally directed annular bottom part bounding the side wall and an inner saucer-shaped bottom part bounding an inner edge of the annular bottom part and wherein the grooves extend exclusively in the saucer-shaped bottom part and from a position located at a distance from the inner edge of the annular bottom part toward the outlet opening, and wherein each of said grooves extends from a position located under the coffee bed of the pouch in a direction away from the side wall.