Thawing frozen breast milk


  • Use the older milk first unless recently expressed  milk is recommended .
  • Thaw the breast milk by placing  the  collection container in the refrigerator for several hours or overnight.
  • You can also thaw quickly or warm  refrigerated  milk by placing the container of milk under warm running water  or placing it in a cup, pot or basin of warm water.
  • Do not thaw breast  milk in very hot water or in  the microwave. This decreases some of the properties of the milk. It can also produce hot spots that may burn the child’s mouth.


It is normal for your milk to separate during storage. You will see a layer of cream ( fat ) that has risen to the top. You can recombine the cream with the rest of the milk by gently swirling the bottle. Avoid vigorous shaking.


DO NOT refreeze breast milk once it has thawed .Thawed milk must be used within 24 hours.

Content Sources
Thawing breastmilk. Stanford Children’s Hospital. Accessed January 13th, 2019

Storing and thawing breastmilk. Medela. Accessed January 13th, 2019

How do i safely thaw frozen breastmilk. Tommee Tippee. Accessed January 13th, 2019

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