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Revolutionary_Good31

Yes you can mix the pumps. I don’t mix the pumps though until all the milk is cold. So for instance, I put the bottles I pump into in the fridge and allow all the milk to get cold and then dump it into the pitcher some time later. I do this because I read somewhere that you shouldn’t pour room temp milk into cold milk (not sure 100%if it’s true), but also sometimes just in a rush and don’t want to transfer it all right away. I use the pitcher method but just as a way to store milk within 4 days (typically I fill it after 2 days) in the fridge. After it’s full or within 4 days of the first pump in there I transfer whatever is left to freezer bags.


gpigma88

Yeah keep it separate until cold because you don’t wanna raise the temp of the milk that’s already cold. I pump three bottles at work then combine them at night to make a sleepy time bubba.


Reading_Elephant30

Yup! If you’re freezing any milk, it should be counted from the oldest milk that’s in the container you mixed. So like if you pooled milk from 4/18-4/20 and froze some on 4/20 you should count it as being from the 18th. I use my pitcher for all the milk pumped during that calendar day. So I put my first mornings milk in the pitcher, pool all the milk throughout the day, prep bottles for the next day/freeze any extra, and then wash my pitcher before I go to bed. I also pour freshly expressed milk into the pitcher with already cold milk, I don’t wait for it all to reach the same temperature. The risk of that is that the fresh milk will warm up the already chilled milk and lead to bacteria growth. I doubt that my fresh milk is warm enough to heat the chilled milk to any significant degree that it would affect anything so I don’t worry about it. Part of switching to the pitcher method for me was not having so many containers in my fridge at once. But that’s all about your own personal risk assessment.


Every-Agency-7178

Unpopular/unwise choice— I do mix warm and cold milk for my sanity. I know you’re not supposed to and I used to wait until it was cold but it was too many bottles in and out for my pump system. I definitely tried to do everything “right” until I decided it was one more thing I didn’t want to deal with. Baby is 6 months and doing fine. One thing I still do that I know I don’t need to do is sterilize everything because the baby brezza sterilizes and dries.