Abstract: “A profiled press plate for forming a blank from two or more layers of sheet material in a platen press, comprising: a profiled press plate comprising a first profile portion on a surface thereof, the first profile portion being configured to compress the two or more layers of sheet material to form a seal there between about at least a portion of a periphery of the blank, the plate portion further comprising a second profile portion on a surface thereof, the second profile portion being located inwardly of the first profile portion and configured to compress two or more layers of sheet material to form fold lines therein, wherein the profiled press plate includes one or more inlets in fluid communication with a source of fluid and one or more outlets in fluid communication with the one or more inlets via a fluid passageway in the first profile portion and/or the second profile portion, and wherein a flow of fluid through the fluid passageway is configured to alter the temperature of the first profile portion and/or the second profile portion.”