Do I register each product separately?

Where the product side applies, yes: the Food Code requires imported or re-exported food items to be registered individually, and the Municipality’s service pairs each item’s registration with a label assessment. A product list is a starting point for the checklist, not a submission. Consumer products such as cosmetics or food-contact materials sit in a different Municipality channel; whether a given product belongs there or in the food-item service is confirmed with the authority before anything is filed.

From FoodWatch & Food Product Registration — the full reading, with the method behind this answer.