Beverage container

A fluid container for arrangement in a beverage container:

• wherein the fluid container extends in an axial direction between a first end and a second end and includes a first volume for storing a fluid inside a fluid container wall,
• wherein the fluid container includes, between the first end and the second end, a central region which includes, in the axial direction, a constant cross-sectional area which extends transversely to the axial direction, and a longitudinal axis which extends parallel to the axial direction and runs through a centroid point of the constant cross-sectional area,
• wherein the fluid container includes a first end region at least between the first end and the central region,
• wherein at least a part of the first end region is formed by the contacting of opposing regions of the fluid container wall, and
• wherein regions which contact one another form a connecting region that extends transversely to the longitudinal axis over a width and along the longitudinal axis over a length, and
• wherein at least one of:
• the fluid container includes at least one aperture in the first end region, or
• at least part of the connecting region has a curved profile over the width, or
• the first end region includes, in the axial direction, first cross-sectional areas, which extend transversely to the axial direction, with first centroid points, wherein at least some of the centroid points are arranged so that they are spaced apart from the longitudinal axis in a radial direction.