Medela breastmilk and feeding bottles are BPA-free, in addition to all Medela products that come into contact with breastmilk. Medela bottles are made from polypropylene, a plastic which does not contain BPA. It is easy to identify bottles made from polypropylene. It is a soft, semi-cloudy plastic and typically has the Recycle 5 symbol and/or PP on the bottom of the containers. For more information click here.