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Proper Breast Milk Storage and Handling

Breast milk is a living substance! It contains millions of live cells, including white blood cells (for immunity) and stem cells (for organ development and healing). It also contains over 1000 proteins, amino acids, prebiotics, enzymes, growth factors, hormones, antibodies, long-chain fatty acids, microRNAs...the list goes on, and scientists are discovering more every day!

Properly storing and handling breast milk can make a real difference in babies' health and nutrition, starting with the conditions under which it is pumped, the type of storage container, when and how it is stored, and when and how it is thawed/warmed.



How Your Pumping Conditions Affect Your Stored Milk

 

Do you wash your hands prior to pumping? Do you sanitize your pumping station and components prior to pumping? Are you pumping in a temperature controlled room or outdoors on a hot summer day? What is the temperature in your refrigerator or freezer? Varying factors can affect how long your milk can be stored safely, so please take the guidelines as a general and not a hard and fast rule. If you are pushing the limits of the storage guidelines, please take the above conditions into consideration, and remember it's always a good idea to err on the conservative side if there's any question.

 

Thawing/Warming Your Milk

 

Let's talk about heat. Most of us know never to heat breast milk in the microwave, due to the possibility of creating "hot spots" that can burn your baby's mouth, but many do not know that exposure to high temperatures also can induce fat profile variations and impact the nutritional and immunological properties of your milk. This includes hot water baths, and especially the use of electric bottle warmers! The ideal way to thaw breast milk is overnight in the refrigerator, then warmed gently until it's room temperature. If thawing overnight in the refrigerator isn't possible, the next best thing is to run the container under cool water, gradually adding warmer water until the milk is room temperature. Let's face it...in real life, sometimes a hungry baby demands that milk is thawed quickly. Microwaving can be tempting in these situations, but please resist the urge! In a pinch, using hotter water to thaw the milk more quickly is still better and safer than microwaving.

👉Pro tip: Always make sure to gently stir or shake to equalize the temperature and mix in the fat particles that naturally separate when milk is frozen.



***The information provided on our website is intended solely for general educational and informational purposes only. It is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician for any questions you may have regarding your or your child’s medical condition. Never disregard professional medical advice or delay in seeking it because of something you have received in this information.***