>>1309801First, what asshole doesn't make their own pasta sauce? Easy, cheap, tastes better. Second, don't put acid on aluminum, it will taste like shit. Just use a sheet pan, or silicone baking sheet, or parchment paper. Last, ovens have a damned vent. If you want to prop it open so it runs a little cooler, maybe, but that will probably backfire on you. There's really no need to "prop it open with a stick." Oh! One more thing! A spice grinder would do you WAY better than a blender.