| 摘要 |
A method for making paperboard food containers ( 10 ) includes a step of preparing a piece of paperboard; a step of exposing the paperboard in high temperature of vapor to increase moisture content in the paperboard; a step of molding the paperboard, and a step of trimming the paperboard. The paperboard food container includes a base with periphery wall and rounded corners. At least one separation ridge extends from a top surface of the base.
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