Powdered infant formula is not
sterile. It could contain bacteria that can cause serious illness to your baby.
By preparing and storing formula properly and sterilizing bottles, you can
reduce the risk of infection.
Here are some tips for keeping
bottle-feeding safe for your baby:
• Boil bottles and nipples for
5 minutes before you use them for the first time. After the first use, wash
them for 1 minute in hot, soapy water and rinse after each use. This removes
harmful bacteria that can grow and make your baby sick.
• To be sure your baby’s
formula is sterile, feed her prepared liquid formula, especially when she is a
newborn.
• Wash your hands before
preparing each bottle.
• When you first open your
formula container, make sure it is sealed properly. If it is not sealed, return
it to the store.
• Check the “Use By” date on
the formula package. Do not use it if it has expired.
If you are using powdered
formula:
• The safest way to prepare
formula is to boil the water before use. Allow the water to cool down before
mixing with formula. If you do not boil the water, prepare the formula
with sterilized bottled water.
• Avoid mixing up large amounts
of formula at one time.
• Be sure to use the right
amount of water to mix with your baby’s formula. Read the directions on the
packaging label. Too much water may keep your baby from getting the right
amount of nutrients she needs to grow. Too little water may cause diarrhea or
dehydration.
For all bottles:
• Don’t heat formula in the
microwave. Some parts can heat up more than others and burn your baby. You can
warm or cool the bottle by holding it under running water. Make sure the
running water is below the lid of the bottle. Then, shake the bottle to mix the
formula to avoid hot spots.
• To keep bacteria from
growing, don’t leave formula out of the refrigerator for more than 2 hours. If
you do not plan to feed your baby right away, refrigerate the bottle until the
feeding.
• If you plan to make a bottle
of formula in advance to use later, prepare the feedings separately and put
them in the refrigerator until they are needed. Throw away unused formula that
has been in the fridge for more than 24 hours.
• If your baby does not finish
the entire bottle of formula, discard the remaining formula.
• If you are traveling, keep
the prepared formula cold by placing the bottle in a lunch bag with ice packs.
For more information on how to
prepare bottles safety, visit the World Health Organization’s guidelines
for cleaning, sterilizing & storing. For information about
formulas and what to ask your baby’s doctor, visit our website.
For information on safe handling and
storage of breast milk, visit our blog.
If you have questions about
bottle-feeding safety or other pregnancy and newborn health questions, email us
at AskUs@marchofdimes.org