Lansinoh Breast Milk Storage Bags are perfect for mums to store breastmilk in the fridge or freezer, lying flat or standing up. Lansinoh Breastmilk Storage bags are made from food-safe polyethylene (PE). They are also BPA and BPS-free. Bags need to be handled with care when storing in and taking off from the freezer, especially when defrosting. If a bag is dropped, or damaged in any way, it may leak while defrosting. The bags now come with a hygienic tamper-evident and secure tear-away top along with the write-on tab making it easy for mums to keep track of how long the breastmilk has been stored. IMPORTANT NOTE!: Ensure that your Lansinoh Breastmilk Storage Bag has white and purple flowers and a white line above the logo as shown in the image. If your bag does not have this design, it is not compatible with pumping directly into the bag.titleHow to store Breastmilk idhow-to-store-breastmilk