Ask The Expert: How to prepare stored milk for feedings?


Every member of our Customer Service team is a Certified Lactation Counselor (CLC) or an International Board Certified Lactation Consultant (IBCLC), so when you have a problem, they are well-equipped to solve it.

And because sometimes you don’t know what you don’t know, we’d like to share their answers to frequently asked questions to keep you informed.

We are breaking down the questions by subject. Today we are talking about how you prepare your milk for feedings.

Meet Kristi Dodson. International Board Certified Lactation Consultant and on our amazing customer service team. (Seriously, if you ever need help, Kristi is just an email away).

Q: How do I prepare my milk for feedings?


If pumped milk is in the fridge, you have a few options for warming it up: 

  1. A bottle warmer (the most common way). PS- one of our favorites
  2. Put it under warm tap water or heat a bowl of water for the bag to sit in for a few minutes. As the milk warms, you want to swirl it a bit, so the fat will incorporate back in.


If milk is frozen, you have the following options:

  1. Put it in the fridge the night before to start the thawing process. 
  2. Thaw it by running under a faucet with warm water.
  3. Put it directly into a bottle warmer to thaw and warm. (It will just take a bit longer.)


A few helpful don’ts when it comes to breastmilk.

  1. Never shake breast milk, as it can damage the proteins. 
  2. Breast milk should never be microwaved – it can destroy the milk proteins and create hot spots, which could burn a baby.
  3. Do not warm it up and then cool it down again. As painful as it is, if a baby only drinks part of the bottle, you’ll need to throw the remaining milk away. Otherwise, you run the risk of bacteria growth.

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