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Can you put already warmed breast milk back in fridge?

Can You Put Already Warmed Breast Milk Back in the Fridge?
The question of whether warmed breast milk can be safely returned to the refrigerator is one that many new parents grapple with. The answer, while seemingly straightforward, is nuanced and hinges on several important factors regarding safety and best practices.
General Guidelines on Breast Milk Storage
Breast milk is a precious resource for feeding infants, and its storage requires careful attention to ensure it remains safe and nutritious. According to health guidelines, once breast milk has been warmed, it should ideally be used within a specific timeframe. The Centers for Disease Control and Prevention (CDC) advises that warmed breast milk should be consumed within two hours if it has been heated and not used.
What Happens When Breast Milk is Warmed?
When breast milk is warmed, it creates an environment where bacteria can proliferate. This is particularly concerning for infants, whose immune systems are still developing. If the milk has been warmed and not consumed, the general consensus among experts is that it should not be returned to the fridge for later use. Instead, it should be discarded after the two-hour window has passed.
Exceptions and Special Cases
However, there are some nuances to consider. If the warmed milk has not been fed to the baby—meaning the baby has not taken any from the bottle—it may be safe to refrigerate it again, but only for a limited time. Some sources suggest that if the milk remains untouched, it can be refrigerated for up to four hours. This is a critical distinction, as any contact with the baby can introduce bacteria, making it unsafe to return to the fridge.
Best Practices for Parents
For parents navigating the complexities of breast milk storage, the best practice is to plan ahead. If you anticipate needing breast milk, consider warming only what you expect your baby to consume in one sitting. This minimizes waste and ensures that the milk remains safe. If there is any doubt about the safety of the milk, it is always wise to consult with a pediatrician or a lactation consultant for personalized advice.
In summary, while it is technically possible to refrigerate warmed breast milk again under certain conditions, the safest approach is to use it within two hours or discard it if it has been fed to the baby. This ensures that your little one receives the best nutrition without the risk of bacterial contamination.

Can you rewarm breast milk twice?

Breast milk that has been refrigerated or frozen can only be heated once. Never reheat breast milk as this accumulates bacteria the more it is exposed to warmer temperatures. Breast milk that has been heated or brought to room temperature needs to be consumed within 2 hours.

How long can breast milk sit out after being warmed?

If you thaw breast milk in the refrigerator, use it within 24 hours. Start counting the 24 hours when the breast milk is completely thawed, not from the time when you took it out of the freezer. Once breast milk is brought to room temperature or warmed, use it within 2 hours.

How long is a bottle good for once warmed?

one hour
After warming the bottle, infant formula is good for one hour. (Though, while many parents prefer to warm their baby formula before serving, it’s actually not necessary!)

Can I refrigerate an unfinished bottle of breastmilk?

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.

What to do with leftover warmed breast milk?

Leftover breast milk can still be used within 2 hours after the baby is finished feeding. After 2 hours, leftover breast milk should be thrown away. To avoid wasting unfed milk, consider storing, thawing, and warming it in smaller amounts. See Breast Milk Storage and Preparation for more information.

Can you put heated milk back in the fridge?

If your baby does not finish a feeding, you should throw away the leftover breast milk in the bottle. Warmed breast milk CAN NOT be refrigerated again. Although it’s not well known, refrigeration can slow the growth of some bacteria. Doctors do not recommend refrigerating heated milk.

How long is breast milk good for after heating?

within 2 hours
If you thaw breast milk in the refrigerator, use it within 24 hours. Start counting the 24 hours when the breast milk is completely thawed, not from the time when you took it out of the freezer. Once breast milk is brought to room temperature or warmed, use it within 2 hours.

Can you reheat breast milk twice according to the CDC?

Never refreeze or reheat breast milk that’s been thawed, the CDC notes. If you’re not feeding baby immediately, keep defrosted breast milk in the fridge. If you thawed it at room temperature, the milk is good for up to two hours (after that, throw it out).

Can I put breast milk back in the fridge after warming?

If it’s not used, it should be thrown away. “Once your milk is warmed, the ability of the milk to inhibit bacterial growth is decreased, so it is not recommended to place your milk back in the refrigerator,” explains Andria. “The baby’s mouth touching the milk leads to bacterial growth in the milk.

Can you put baby milk back in the fridge after warming?

If it’s been warmed up, just toss it. Warmed up milk cannot go back into the fridge.

Natasha Lunn

Tash is an IBCLC and Business Coach helping fellow IBCLCs create fun, profitable businesses that are more than just an expensive hobby. Before becoming an IBCLC and starting her private practice - The Boobala, Tash graduated as an Osteopath in 2008 and has been in Private Practice in South West Sydney. She was also a volunteer Breastfeeding Counsellor and Community Educator with the Australian Breastfeeding Association for 6 years. Through her business, Your Lactation Biz, Tash coaches and creates products to help new and seasoned IBCLCs build businesses that suit their personality and lifestyle.

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