[0001] A thermoformed sealable container comprises a base and a continuous side wall extending substantially perpendicular to the base with a peripheral flange formed along the upper, in use, edge of the continuous side wall; wherein the base and the continuous side wall are clear and consist essentially of polyethylene terephthalate (PET); wherein the peripheral flange comprises a return flange; wherein a layer of adhesive is located on an upper, in use, surface of the peripheral flange such that a lidding film may be sealed to the peripheral flange to create a sealed space between the base, continuous side wall and lidding film, and wherein said layer of adhesive does not extend onto the vertical, in use, surfaces of the continuous side wall and does not extend to the base.