It's scary to think an entire generation of us reading this was raised on baby bottles made with BPA (bisphenol-A), an estrogen-mimicking ingredient of hard polycarbonate plastic. BPA is thought to be a carcinogen.
A new product slated to hit the market in late July is the Weil Baby Bottle, which uses a new copolymer called Tritan. Developed by Eastman Chemical Company, Tritan has the qualities of hard plastic that you need in a reusable bottle--clarity, toughness, and dishwasher-machine-weathering heat-resistance--without the BPA.
The Weil Baby Bottle's launch is still about a month away, so their website hasn't gone live yet. Images are still scarce, but you can expect to see it cropping up on parenting blogs in 30 days or so. In the meantime, materials geeks can learn more about the Tritan stuff, which should be cropping up shortly in consumer and medical products, here.