Hi All -
I have a company that is making nutritional bars with nuts, dried fruits, seeds, etc. We're trying to find the best way to create consistent sizes. We don't have the funds for a large extruder, so we're playing around with some different ideas.
Right now, we are pouring our mixture into a full size baking pan. We roll it out to a uniform height, and now we're trying to find the best way to cut the bars. I've just purchased some multi-wheel cutters (http://www.jbprince.com/pastry-tools-and-equipment/multiple-disc-cutter-rod.asp) that I'm hoping will cut through our mixture easily, but now I'm concerned about cutting directly on the baking sheets. I've read that you can't cut on an aluminum sheet because it will expose the toxic metal to the food. It seems that the only option is to purchase stainless steel baking sheets, but these are much more expensive. Can I safely cut on stainless steel? Is there anything I can put between the mixture and an aluminum sheet to keep the product safe? Parchment paper is not enough of a barrier and you can't cut on silicone baking sheets.
Any ideas here? Please let me know if I can provide more details.
Thank you for the help!!