A recyclable composite container comprising: - a cardboard hollow body having an open end defining an opening, the body being formed by a sidewall having inner and outer surfaces (22, 24), the sidewall being provided with an aperture at a distance from the open end; a first framing element removably connectable to the open end having: - a collar sized and shaped for snugly fitting over said open end; and - a resilient arm extending from the collar, the arm being for extending along the inner surface of the sidewall and having a projection sized and shaped to be removably fitted in the aperture of the sidewall of the hollow body; characterized in that the recyclable composite container comprises: - an additional framing element connectable to the first framing element, said additional framing element comprising a U-shaped snapping collar comprising parallel inner and outer walls (53, 54) for clamping the open end on both the inner and outer surfaces of the sidewall, the U-shaped snapping collar of the additional framing element snapping over the collar of the first framing element; wherein one of the inner and outer walls (53, 54) of the snapping collar being provided with a locking flange interlockable with the collar of the first framing element; and - an impervious bag for lining the inner surface of the sidewall of the cardboard hollow body, the bag having an open end clampable between the first framing element and the U-shaped snapping collar of the additional framing element; thereby allowing connection of the first framing element to the cardboard hollow body by fitting the projection of the resilient arm in the aperture of the hollow body, and allowing disconnection of the first framing element from the cardboard hollow body by pressing the projection to disengage the projection from the aperture and by pulling the first framing element away from the cardboard hollow body. - a cardboard hollow body having an open end defining an opening, the body being formed by a sidewall having inner and outer surfaces (22, 24), the sidewall being provided with an aperture at a distance from the open end; - a collar sized and shaped for snugly fitting over said open end; and - a resilient arm extending from the collar, the arm being for extending along the inner surface of the sidewall and having a projection sized and shaped to be removably fitted in the aperture of the sidewall of the hollow body; - an additional framing element connectable to the first framing element, said additional framing element comprising a U-shaped snapping collar comprising parallel inner and outer walls (53, 54) for clamping the open end on both the inner and outer surfaces of the sidewall, the U-shaped snapping collar of the additional framing element snapping over the collar of the first framing element; wherein one of the inner and outer walls (53, 54) of the snapping collar being provided with a locking flange interlockable with the collar of the first framing element; and - an impervious bag for lining the inner surface of the sidewall of the cardboard hollow body, the bag having an open end clampable between the first framing element and the U-shaped snapping collar of the additional framing element;