Abstract: The invention relates to a packaging system for foodstuffs, having a container extending from a container base via a container casing, which itself extends around a container axis and preferably widens approximately in the manner of a truncated cone-shape, in the direction towards an upper container edge which extends around a container opening, and having a chamber containing the foodstuff, wherein the chamber has a chamber casing extending from the upper container edge in the direction towards the container base, disposed within the container casing and at least over apart of the axial chamber height at a radial distance from the container casing and extending around the container axis, and has a chamber base preferably disposed at an axial distance above the container base.

Abstract: Embodiments of the invention concern a method for producing a packaging container (50), in which a synthetic raw material is melted and extruded to obtain a plastic film (30, 40), which is subsequently processed in a forming process on to the packaging container. At least a portion of the plastic raw material has a propellant added prior to or during the extrusion process in such a way that it leads to the expansion of the extrudate that contains the propellant upon exit from the extrusion die, occasionally accompanying the release of a propellant gas. Embodiments of the invention also concern a packaging container (50) that is produced according to this method which has a container base (56) and a lateral boundary of the container that indicates the container wall (52) which constitutes the shell of the container (54), whereby the container wall is at least partially created by a foamed plastic material.