Medela - Breastmilk Bottles Breastfeeding gives your baby the healthiest start in life. Expressing your milk using the unique research based Medela products makes breast milk feeding the next best option. Key Features: Ideal for collection storage and freezing of breast milk Suitable for pasteurization Made of Polypropylene Shatterproof: No cracking and splintering when dropped Proven food-grade material: Designed to retain breast milk storage No Bisphenol-A: Safest plastic for breast milk storage Pumping directly into the bottle Milk may be reused directly from bottle when thawed Compatible with any Medela Breastshield/BreastpumpContents: 2 Breastmilk bottles with imprint (250ml) 2 Lids 2 DiscsUseful Hints/Trouble Shooting: Breast milk should not be left at room temperature Frozen breast milk separates no matter that kind of container it is stores in. Before feeding the breastmilk may be shaked to mix everything back together. This helps re-integrating the milk fat that had been clinging to the container or bag Can not be autoclave