Leading folding carton manufacturer, Graphic Packaging International (GPI) has collaborated with 2 Sisters Food Group (2SFG) to launch a unique carton with an ovenable tray insert for Marks and Spencer’s Detroit-style Deep & Loaded pizzas.

The novel concept has been specially designed by GPI to enable the consumer to conveniently cook a Detroit-style pizza – which is characterised by cheese that goes right to the edge and down the sides of the base – in a conventional home oven.

“We were challenged to create an ovenable cartonboard tray that would achieve a crispy base and eliminate the possibility of superfluous melted cheese spilling over the edge of the pizza and into the appliance” said Key Account Manager at GPI, Lauren Hutchinson.

The resulting design allows the consumer to simply remove the artisan-look outer carton, using an easy-open tear strip, and place the pizza and cartonboard insert tray straight into the oven.

The tray design ensures a crispy base by facilitating air circulation and moisture dispersal, while the fold-up sides prevent cheese from entering the oven. The novel design also keeps the tray dry, meaning that it’s strong enough to lift the pizza out of the oven and even tolerates pizza cutting.

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