Anyone who has ever walked the baking aisle at a supermarket knows what happens when packaging isn’t dust-tight. Flour, sugar and even pasta can get all over the shelf.
Most dry foods are packaged in conventional paper with poor adhesive sealing, which allows small food particles to migrate between air gaps during the filling process, leading to product leakage. While it’s annoying to many shoppers, for companies, it also means product loss and packaging that’s vulnerable to invasion by pests.