DISPOSITIVOS DE COZIMENTO DE PELÍCULA FINA E MÉTODOS

Improved cooking devices and methods of achieving intimate heat transfer contact between a low-friction, non-stick release sheet material and a heated platen are provided. In particular, improved intimate heat transfer contact may be achieved by providing a very thin release sheet, providing a layer of heat transfer enhancing material forming an intimate heat transfer contact interface between the release sheet and the platen, and/or providing a release sheet that is gas-permeable and liquid-impermeable. A dynamic tensioning system is also provided for mounting a release sheet to a heated platen and maintaining even, bidirectional tension on the release sheet to keep it taut against the platen. Illustrated embodiments of the invention include a clamshell grill and conveyorized contact toaster.