Tim Boyle/Getty Images News/GettyImages

Kellogg’s includes manufacture codes on products to show customers the date by which they should consume them. You can still eat Kellogg’s products after the printed date, but vitamin and mineral content usually decline past the product’s expiration. Kellogg’s uses different expiration codes for different products; they usually consist of a combination of numbers and letters. Learning how to read expiration codes on Kellogg's products will enable you to determine if your cereal is past its consumption date.



Interpret the two numbers following the first three letters or first two numbers as the product’s expiration day. The "01" in a product with the code "FEB 01 2010 AOJ" or "020110AB" represents the first day of the month--in this case, February.



Any letters and numbers following the expiration year indicate Kellogg's manufacturing locations.