A recent concern in the baby-feeding world has been that of the chemical BPA (bisphenol-A) leaking from polycarbonate plastic bottles when heated or washed repeatedly. The more popular brands of bottles that are made with this plastic include Avent, Dr. Brown's, Evenflo, Gerber and Playtex. Studies have shown that BPA may end up in breastmilk or formula, potentially contributing to health issues such as cancer, immune function problems, early puberty, obesity, and diabetes. The newly revised "Baby 411" recommends the following:

• Using glass bottles
• Using bottles made if opaque plastic, such as those made by Medela.
• Consider using a BPA-free plastic bottle such as Born Free, even though they are more expensive than other bottles
• Use a bottle with drop-in liners. The liners don't have any BPA.
• Don't buy store-bought baby food in metal or plastic containers.

Keep in mind that these recommendations also include sippy cups. "Baby 411" advises those who still desire to use plastic bottles (that are not mentioned above) to limit boiling them or putting them in the dishwasher. They also warn against using the "heated dry" cycle on the dishwasher. In addition, be sure to buy new bottles every time a new baby is born.