I have 2 oz bottles stored in the refrigerator, but I want to combine two bottles. As long as they are both cold can I combine two bottles and put back in the fridge?
If you want to combine breastmilk it is recommend to only do so if that milk was pumped within the same 24 hour period. So if you pumped 2oz at 9am and then pumped 2oz at 4pm that same day, it would be perfectly fine to combine those together. The reason for this is because the more times that the milk is exposed to the open air and transferred from container to container, the more chance it has of becoming exposed to bacteria and other contaminants.
All the best,
Molly Petersen, CLC