Expiration dates can be hard to locate on a product and even more challenging to decipher. Does not have a uniform system of coding expiration dates on food products as of 2010, according to the U.S. I can't find an expiration date on the box, or any of the packages. Kellogg Expiration Date Code I have a box of six month old Pop Tarts on the counter, and I really want one. After this date, the product is still safe to eat, but the quality of the product may decline and you may notice a change in texture or flavor. Q: How long are Pop-Tarts good for after date on box? A: The manufacture code on our packages indicates the date that the product should be consumed by to ensure that it meets our high quality standards.
