While searching for something way in the back of the refrigerator, I found a bag containing two sticks of Crisco. I don't have a clue as to how long they have been in there. I do know that it is a LONG time. (As in years and years and years.) They do not have an expiration date on them. They do have 6100AC23:42 in blue printing on the side of the plastic container that each stick is in. I don't know if I even want to use "Butter Flavor Artificially Flavored" "stuff", but, could I?