The formula should feel lukewarm not hot.
Room temperature baby bottles.
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.
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.
Prepared infant formula can spoil if it is left out at room temperature.
But even if you know what temperature to keep your baby.
Heating bottles on the stove top in boiling water can also cause milk to heat unevenly warm too quickly or overheat all at once.
Use a cup or glass that is a little wider than the bottle and fill it with hot tap water leaving enough room for the bottle.
With ds1 i used to warm them from fridge temperature only to figure out that the bottle warmer was only warming them to room temperature.
Use prepared infant formula within 2 hours of preparation and within one hour from when feeding begins.
Since then i have only ever given my boys room temperature formula.
Bottles that are microwaved also continue to cook after they re removed making the temperature increase further and putting your baby at risk for burns.
For example i steralise the bottles boil the water fill the bottles to the amount of water needed and then when needed i put the amount of.