J.G.
A.,
I always take out the milk the night before to thaw in the fridge. In the morning the milk is the consistency of a milk shake usually. I then poor the milk in the bottle and my mother in law heats it up in a container with hot water till it is at a good temp. If the milk has too much ice in it to poor in the bottle then I first put it in a container of warm water until it is broken up enough to go into the bottle. (I store my milk in Gerber breastmilk bags). Hope this helps.