How should I store opened puree pouches? You should refrigerate after opening and use within 24 hours. Related articles How should I store unopened puree pouches? You're not supposed to shake breast milk because it will lose its nutrients. Why do you recommend shaking it? Is Ready. Set. Food! a treatment for existing food allergies? Is there any added sugar in the Ready. Set. Food! Organic Purees? How do I know if my baby is having an allergic reaction? Was this article helpful? Yes No