Freeze drying your breast milk can provide extended life and make it self stable based on findings by the USDA. Freeze dried foods may last up to 25 years when kept in proper room temperature storage, out of direct sunlight and free of oxygen and moisture. BoobieJuice pouches are good for 3 years from package date or by their listed use by date. There are many factors that affect storage times including fat ratios, temperature and exposer to UV sunlight. Lower fat ratio milk has a longer shelf life. Every Mama’s milk is unique in its makeup, ie. fat levels and lipase levels and can vary over 3 years. All unopened BoobieJuice Pouches are good for 3 Years from package date or listed use by date when stored unopened, at room temperature, out of direct sunlight. Each BoobieJuice Pouch is made from a proprietary triple layer high barrier film, designed for commercial vacuum sealing, that does not allow oxygen or moisture to pass. Make sure to inspect your pouch for punctures prior to opening. We recommend keeping your pouches in a cool and dark place. Recommended in a room temperature environment below 80F and away from direct sunlight. Once open, please consume within 30 days after opening and resealing. Well kept (environment & temperature) unopened pouches can last over 3 years from their packaging date and up to 10 years when stored properly and inspected. Freeze dried breast milk with vary in aroma from a sweet to a cheesy aroma. If a pouch smells off putting or rancid, do not consume the pouch.