BPA In Sippy Cups?
I know all the concern over BPA in baby bottles, but what about sippy cups? My baby has Avent bottles, but since he's almost exclusively on the breast, I decided not to replace them, but he's 11 months and we're working on transitioning him to a sippy cup. Is BPA a concern? Are they just made with different plastics? It seems to me my baby chews and gnaws on a sippy cup a lot more than his bottle, and a sippy cup will last a lot longer...but I haven't heard a thing about sippy cups and BPA. Can someone explain this to me?