How can I tell if a product has expired?

The short answer is check the expiration date. For the long answer, keep reading.

FROZEN: Shelf life is two years from the manufacture date when kept in the freezer. The manufacture and expiration dates are laser-coded on the side of products in boxes or thermal-printed on the longer, heat-sealed flap of film wrappers.

GROCERY (CAN): Shelf life is three years from the manufacture date. The manufacture and expiration dates are printed on the bottoms of the cans