Questions about pumped milk. I've been pumping 1 or 2 ozs a day. Then I put it in the fridge to get cold, then xfr to a breastmilk bag for the freezer. If I pump again the next day, can I add this to the same freezer bag? I'm afraid that opening the freezer bag might rip it, since it is frozen solid by the next day. Also, does adding the cold milk (I'll put it in the fridge first) to the frozen milk shock it in some way? I was thinking it was better to gradually freeze it, that's why I put it in the fridge first, then xfr to freezer bag.
I was thinking I could just keep a freezer bag in the fridge and adds my 1 or 2 ozs per day, then when I have 4 ozs, transfer to the freezer, but then the breast milk could be up to 4 days old before freezing, is this bad? I don't want to waste freezer bags and only put 1 oz per bag, but also don't want to rip/damage bag by trying to open frozen solid to add more milk.