There have been over 1000 studies on biphenol A(BPA). All the studies sponsored by industry say that it is safe. 90% of the non-industry studies show that it is toxic. BPA makes food packaging more attractive, especially clear plastic bottles and the lining of canned foods. BPA is an estrogen-like compound that has been linked to endocrine disruption, cancer, heart disease and allergies. The FDA is concerned but cannot regulate BPA because it is on the generally recognized as safe (GRAS) list. Avoid it whenever you can.
See MotherEarthNews.com (click here) and Google BPA researcher Frederick vom Saal.