Q. What can I do to reduce my baby's exposure?
A. Consider BPA-free alternatives, like glass or softer, cloudy-looking plastic bottles (check out our finds below). "And if you are using bottles made with BPA, try not to microwave them or put them in the dishwasher," says Roberts, since heat can break down the plastic and trigger the chemicals to leach more readily. Also, toss bottles when they start to look scratched -- another sign of plastic degrading. According to one recent report, BPA may leach after as few as 50 to100 washings.