Studies have shown that baby bottles made by the major brands Avent, Evenflo, Dr. Brown’s and Disney/First Years leached BPA when heated. BPA is a very dangerous estrogenic compound that has been found to be toxic at low doses and is linked to breast cancer, early onset of puberty and prostate cancer. The Breast Cancer Fund web site is hosting a petition where you can easily sign it and send it on to these big baby bottles manufacturers and let your voice be heard! They need to stop manufacturing bottles with BPA!! Playtex has already stopped, so why won't they??