Okay, first off all, my breastmilk never came in so my son (who will be 1 on Friday) was formula fed. Feel free to flame me, but I didn't have a choice.
Okay, that's out of the way.
Formula is good for 2 hours, even after saliva is added. But starting this week we are changing him over to cow's milk.
So how long can I leave a bottle of cow's milk sitting out, once saliva has been added, before it will start to go bad?