Rule of thumb, if itās kibbles, never buy a bag thatās not vacuumed sealed. Air destroys any food product. When I use to feed kibbles the bag was emptied into a big container with a rubber seal cover n in the closet it went.
Kibbles are heated to an extreme high temperature n why they donāt need to put expiration date. In human food same thing unless itās anything thats on the dairy side, baby food n fresh meat. Then yes youāll always have dates on them products.