Learning About Preparing and Storing Infant Formula

How do you prepare and store the formula?

Clean the area

• Wash your hands.
• Clean any surfaces you plan to use before making bottles of formula.
• Use only bottles and nipples that have been cleaned in water and dish soap or a dishwasher.

Use the right formula

• Use formula with added iron unless your doctor says not to.
• Use formula that's not expired.
• Use formula from a package in good condition.

Use safe, clean water

• Check with your health department if you're not sure if your tap water is safe.
• You can use bottled water.
• You can boil tap water and let it cool for 30 minutes to make it safe.

Get the formula ready

• Shake ready-to-feed formula before putting it in a bottle. Feed it to your baby right away.
• Mix liquid or powdered formula in a clean bottle by shaking. Do not use a blender. Add the water first, then the powder.
• If warming your baby's formula, put the bottle in warm water. Do not use a microwave.
• Test 2 or 3 drops of formula on your wrist to make sure it's not too hot.

Store the formula

• Liquid or powdered formula that's been mixed can stay in the fridge for up to 24 hours.
• Ready-to-feed formula can be stored in the fridge for up to 48 hours after opening.
• Open powdered formula can be stored in a cool, dry place for up to 4 weeks. Do not put it in the fridge.