Yumi baby food lasts a week in the refrigerator or up to 2 months in the freezer. But once you open a Yumi baby food container, you’ll need to consume it within 24 hours. The reason for the relatively short shelf life is because the baby food is made with organic ingredients and doesn’t have the preservatives and additives that other baby food does. It’s not shelf stable like conventional baby food and should remain cooled.