How to find safe baby bottles

Confused about which baby bottles to buy? You're not alone. What should be a relatively simple decision has been complicated by conflicting reports about bisphenol A (BPA), a controversial chemical that can seep into liquids when polycarbonate plastic bottles are heated.

The National Toxicology Program has some concern about the effects of early exposures to BPA on the brain, behavior, and prostate gland. The Food and Drug Administration, on the other hand, says the levels we're exposed to are too low to cause harm.

While we're waiting for more research, it makes sense to take the "better to be safe than sorry approach." Luckily, BPA is easily avoided.

Use glass bottles

They've been making a comeback lately because they are the healthiest choice for your baby and the planet. They don't leach toxic chemicals, aren't made from petroleum (a non-renewable resource), and you can easily recycle them. Evenflo, BornFree, and Dr. Brown's all make glass versions.

 The downside is that tempered glass bottles can break, crack, and chip. So be sure to inspect bottles regularly and never let your toddler roam around with one. Some innovative manufacturers are adding silicone sleeves to deal with breakage and make bottles easier for babies to grip. Check out Wee Go and Siliskin bottles.

Choose safer plastics

There are a growing number of safer options for those who prefer the convenience and affordability of plastic. You can avoid polycarbonate by looking for a recycling code #7 or the initials "PC" on the bottom of bottles. If a bottle is unlabeled, call the manufacturer or choose another brand. Bottles made from polypropylene (recycling code #5) and PES are safer alternatives. 

Several manufacturers are now making BPA-free claims on packaging. Consumer Reports says the following bottles had negligible levels of BPA in independent lab tests: Born Free, Evenflo Classic Without BPA Custom Flow, Medela Breast Milk Feeding and Storage Set, Nuby Non-Drip by Luv n'care, and MAM Silk-Touch Nipple Anti-Colic Valve by Sassy, Inc.

It's wise to take precautions when using any plastic bottle. Don't microwave in them. Instead, place bottle in a bowl of warm water to take the chill off or heat liquids separately. Sarah Janssen at the Natural Resources Defense Council recommends avoiding the dishwasher and harsh detergents.

The same principles apply when you're shopping for "sippy" cups. You'll also find a growing array of stainless steel versions that are more durable, but also more costly.