Before expressing or pumping: Wash your hands and all storage containers thoroughly. Label the date the breast milk was expressed on each container and include your child's name if you are giving the milk to a child care provider.
Talk with your child care provider about how they require breast milk be stored and labeled. Store breast milk in small batches. Any remaining breast milk left in a bottle after your baby is finished with a feeding should be used within 2 hours, or, if quickly refrigerated, used for the next feeding.
You can always thaw an extra container if needed. Refrigerate or chill milk right after it is expressed. It is best to use refrigerated breast milk within 4 days, but it can be refrigerated for up to 8 days.
To warm breast milk from the refrigerator: Place the bottle in a bowl of warm water or run it under warm water. Microwaving breast milk is not safe due to the risk of scalding your baby with hot milk. Freeze breast milk if you will not be using it within 24 hours. Breast milk expands as it freezes, so do not fill the milk all the way to the top of the storage container. Again store the milk in the back of the freezer, not the door. To thaw breast milk from the freezer: Put the bottle or bag in the refrigerator overnight, hold it under warm running water, or set it in a container of warm water.
Remember that heating breast milk in microwaves is not safe. Once breast milk is thawed: It can be stored in a refrigerator and must be used within 24 hours. We know breast milk storage can be confusing, so here is a more conservative approach that you can also go by and easily remember : 4 hours at room temperature and 4 days in the refrigerator!
May Many women who choose breastfeeding after returning to work, express milk during the day and store this milk for a future feeding. When infants do not finish a bottle of expressed breastmilk, doctors recommend unfinished portions be thrown away.
A portion of unconsumed milk was examined as a control. Samples were taken every 12 hours for bacterial analysis. Tests were performed to identify total colony counts, pathogenic Staphylococci, coliforms and b-hemolytic Streptococci.
Although this project provides evidence that it may be safe to refeed a child a bottle of breastmilk, due to the small sample size, further tests should be performed. This provides some evidence that different standards need to be made for healthy full-term infants.
Once breast milk is brought to room temperature or warmed after storing in the refrigerator or freezer, it should be used within 2 hours. Either rewarming or leaving it at room temperature is fine — whichever works best for you. Per Kellymom :. We do know that for any food, refrigeration slows bacteria growth.
Milk storage guidelines do not include any warnings against rewarming milk, and many moms rewarm with no issues. But unfortunately, you cannot refreeze thawed breast milk, and you need to use it within 24 hours of when it has finished thawing not from when the power outage started or you took it out of the freezer. If your breast milk still has ice crystals, it is considered safe to put back in the freezer. Can I take my breast milk out of the refrigerator and let it gradually warm up, instead of using a bottle warmer?
Again, per the CDC :. So you have two hours once your milk comes to room temperature to feed it to your baby. How long does it take breast milk to come to room temperature when sitting out? I love experiments, so I tested it out. It took about two hours when I tested it out room temperature in my Chicago-in-January house was 66 degrees. How long it will take your breast milk to warm to room temperature will depend on how much milk is in the bottle, what the ambient temperature is, and the composition of the milk.
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