Lillian M. Beard, M.D, a Fellow of the American Academy of Pediatrics, is an associate clinical professor at the George Washington University School of Medicine and Health Sciences in Washington, D.C. She is a frequent guest expert and spokesperson on national television programs, discussing issues related to children's health. Dr. Beard practices pediatrics in Washington, D.C.

Q: What's the best way to clean baby bottles?

A: Proper cleaning of bottles is essential to keeping your baby healthy. While sterilizing bottles isn't necessary, it is essential that bottles are carefully cleaned. As your baby finishes each bottle, rinse out the milk and leave it aside until you have time to wash several at once. If your water is chlorinated and you have a dishwasher, you can simply use it to clean bottles. If you're not using a dishwasher, you'll want to carefully scrub bottles, nipples, and caps with hot soapy water and a bottle brush. Be sure to thoroughly rinse all parts with hot water, making sure to squeeze water through the holes of nipples. Place them upside down on a rack or on a clean, dry towel to air-dry (along with the bottle-brush, which must also be kept clean and allowed to dry between washings.)

Once dried, bottles should be protected from dust and dirt until they are filled. Clean nipples and caps can be stored in a clean covered container until needed for use. Bottles can be kept in a sealable plastic bag. Make sure that all parts are thoroughly dry before storing away since mildew and bacteria can quickly grow.

As an additional measure for cleanliness and safety, always wash the top of formula cans before opening. And, of course, most important, remember to wash your hands before you start this process.