Container with paperboard outer layer and thin plastic foil inner layer

A container comprising a bottom and a sidewall extending upwards from the bottom and terminating at an upper free edge, said upper free edge of the sidewall forming an opening of the container, said sidewall and said bottom comprising an outer paperboard layer and a thin inner plastic foil layer formed via a thermoforming operation, said upper free edge of the sidewall comprising a rim portion extending past the outer surface of the paperboard layer of the sidewall, wherein said rim portion comprises a rolled up portion of an upper portion of the outer paperboard layer of the sidewall, said rolled up portion being covered by a portion of the thin inner plastic foil layer,

• wherein the paperboard layer of the sidewall and/or the bottom comprise at least one recess extending at least partially through the paperboard layer of the sidewall and/or the bottom respectively and in that the thin inner plastic foil layer extends into the at least one recess, and wherein the thin inner plastic foil layer extends through the at least one recess from an interior surface of the container to an exterior surface of the container, and
• wherein the thin inner plastic foil layer extending through the at least one recess forms a locking element mechanically connecting the paperboard layer and the thin inner plastic foil layer.