How to manage catering allergen labels before food leaves the kitchen

Catering allergen labels are easy to treat like paperwork until the driver is already loading the van. That is when someone asks whether the sauce has sesame, which tray is gluten free, or why two vegetarian boxes look the same. At that point the kitchen may know the answer, but the service team and client do not have a clean way to prove it. I learned to build allergen labeling into packing, not…