| 摘要 |
A retortable plastic container includes a finish portion and a main body portion that is unitary with the finish portion and that includes a sidewall having an inner surface that defines an interior space and an outer surface. The sidewall is preferably fabricated from a material comprising a plastic and is shaped so as to have at least one radially inwardly extending annular projection defined therein that provides reinforcement against radial expansion of the main body portion during the retort process. In addition, a transition portion between a main body of the container and the bottom of the container preferably includes at least one annular step that increases the rigidity of the bottom portion of the container.
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