You can't reuse abottle LO has eaten off of bc bacteria from their mouth gets in the milk. Doesn't matter if you warmed it up or it was room temp to start.
I know it says you can reuse a bottle of BM but I can't remember how long you have to use it. I believe it says that it can be used with the next feeding.
Re: bottle warming q
Check kellymom.com
I know it says you can reuse a bottle of BM but I can't remember how long you have to use it. I believe it says that it can be used with the next feeding.