Selling foods that are past the best-before dates

It is not illegal to sell a product if its best-before date has passed. However, when this date has passed, the food may lose some of its freshness and flavour, or its texture may have changed. Some of its nutritional value, such as vitamin C content, may also be lost.

Source:- https://inspection.canada.ca/food-labels/labelling/consumers/date-labelling/eng/1332357469487/1332357545633