 ATLANTA, June 29, 2021 PRNewswire -- Graphic Packaging International Graphic Packaging has announced a third addition to its award-winning PaperSeal tray range to include a new dual-ovenable version, PaperSeal Cook. In response to consumer trends around convenient, homecooked-style foods, customers of the fiber-based packaging leader can now benefit from award-winning PaperSeal tray technology for oven- and microwave-ready chilled and frozen food applications. 