As a general rule the bottle will last for 2 hours at room temperature untouched and unheated.
Baby formula milk room temperature.
If your baby prefers warm formula place a filled bottle in a bowl of warm water and let it stand for a few minutes or warm the bottle under running water.
And if preparing formula ahead of time keep refrigerated or in a cooler.
If you do not start to use the prepared infant formula within 2 hours immediately store the bottle in the fridge and use it within 24 hours.
It might be frustrating to see that your little one is not finishing their bottle.
If it has been at room temperature for more than 1 hour throw it away.
Warm the formula if needed.
And if your baby doesn t drink all the formula in the bottle throw away the unused portion do not save it for later.
Prepared infant formula can spoil if it is left out at room temperature.
Use prepared infant formula within 2 hours of preparation and within one hour from when feeding begins.
But check the label instructions for some brands manufacturer instructions say a bottle is only.
Others do so because it seems more relaxing for the baby that way.
No matter how your baby likes her formula always follow the manufacturer s preparation instructions.
Your baby may prefer it warm at room temperature or even chilled and all of those options are just fine.
However it will also happen quite frequently especially during their first weeks of life.
Tap water temperature varies depending on location and the time of year.
After this time frame passes you should not feed it to your baby anymore.
Some parents like to give their baby a bottle of warm formula because they believe that makes it seem more like breast milk.
The formula should feel lukewarm not hot.
The general rule says that formula will last at room temperature for up to 2 hours.
Formula that s been prepared should be consumed or stored in the refrigerator within 1 hour.
Don t use formula that s been kept at room temperature for more than an hour and discard stored formula after 24 hours of preparing.
However if you give a baby formula made with cold tap water it could be more than 40 degrees fahrenheit colder than breast milk.