Can Baby Drink From the Same Breastmilk Bottle Again

Q: Should breastmilk left over from a feeding be dumped immediately (like formula), or can you save it and give it to baby later on?

A: It is probably prophylactic to salve the left-over milk for use at the adjacent feeding, but no published studies have investigated this upshot. Every bit a result of this lack of data, milk storage guidelines recommend that breastmilk be discarded at the end of the feeding. Let's look at the information that we do have available…

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Storage of left-over milk is a unlike outcome than storage of fresh milk because bacteria from baby's mouth usually enters the milk once baby begins drinking.  Freshly expressed milk contains live cells which kill bacteria, and one study (Pardou et al, 1994) found that some of the milk that had been refrigerated for eight days really had lower bacteria levels than when the milk was first expressed.  Many mothers of healthy babies have saved left-over milk for longer than two hours (sometimes as long as 24-48 hours) with no issues, only whether or not the milk is safe depends on several factors.

• Fresh breastmilk has the most bacteria-fighting ability, followed past refrigerated milk, and then previously-frozen milk. Milk that has been frozen a shorter period of time will have more than anti-infective properties than milk frozen for a longer period of time. Leaner grows more slowly in whatsoever breastmilk than it does in formula.
• The cleanliness of your milk expression technique (hand washing, cleaning pump parts per manufacturer instructions, washing storage containers in hot soapy water) will also touch the amount of bacteria in the milk.
• If your baby is sick or has immune problems, due south/he will be less able to handle "normal" amounts of bacteria. In this example, yous will need to follow stricter guidelines.

Epitome credit: Daniel Lobo on flickr CC BY two.0

If you practise save the milk for subsequently use, some mothers re-refrigerate the milk and others leave it at room temperature – no studies have been done, so we don't know whether one method is preferred. 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 bug. Many moms smell (or taste) the milk to brand sure information technology however smells fresh.

Following are some quotes from various breastfeeding experts:

From the Academy of Breastfeeding Medicine's Clinical Protocol #8: Human Milk Storage Information for Habitation Use for Total-Term Infants (March 2010):

"One time a baby begins drinking expressed man milk, some bacterial contagion occurs in the milk from the babe's mouth. The duration of fourth dimension the milk can be kept at room temperature once the infant has partially fed from the cup or canteen would theoretically depend on the initial bacterial load in the milk, how long the milk has been thawed, and the ambient temperature. In that location have been no studies done to provide recommendations in this regard. Based on related evidence thus far, it seems reasonable to discard the remaining milk within 1–2 hours later the infant is finished feeding."

Per Breastfeeding, A Guide for the Medical Profession (seventh edition, 2011) past Ruth Lawrence, MD (p. 639):

"Breast milk tin can safely stand at room temperature for half-dozen to 8 hours and need not be discarded if the outset feeding endeavor is incomplete. In dissimilarity, formula must be refrigerated and discarded after the outset feeding attempt considering it contains no antibodies or infection protection factors."

Per Breastfeeding Answers Made Uncomplicated (2010) by Nancy Mohrbacher, IBCLC, FILCA (p. 462):

"Mothers are often told to discard any milk after a feeding because the milk mixes with the infant's saliva. Although no published studies have examined the safety of keeping leftover milk, a college student researched this scenario for her unpublished senior thesis (Brusseau, 1998)… The only milk with increased total bacterial counts was ane batch of the warmed and fed milk from a mother who had non followed instructions and had donated previously frozen milk instead of fresh milk. All other batches showed no change in full bacterial counts within 48 hours later feeding."

If my baby doesn't cease a bottle of pumped breast milk can I save it for later? by Jan Barger, R.N., K.A., IBCLC:

"…Based on this report, which absolutely needs to be done on a larger scale, information technology would seem to me that expressed breast milk, fed to the babe, partially consumed, and so refrigerated, could be used for one more feeding no more than 4 hours later. That'southward probably fairly bourgeois. One of the best tests of whether the milk is spoiled is to do what yous exercise with cow's milk: Smell it and taste it!"

Brusseau R. Bacterial Assay of Refrigerated Human Milk Following Infant Feeding. May 1998. [This is an unpublished senior thesis.]

"Summary: The number of infants who are breastfed is on the rise, every bit is the number of women in the workforce. Many women who choose breastfeeding after returning to work, express milk during the mean solar day and shop this milk for a futurity feeding. When infants do not finish a canteen of expressed breastmilk, doctors recommend unfinished portions be thrown away. This study examined bacterial levels in expressed, partially consumed breastmilk that was stored for 48 hours at iv-half dozen° C. A portion of unconsumed milk was examined every bit a control. Samples were taken every 12 hours for bacterial analysis. Tests were performed to identify full colony counts, pathogenic Staphylococci, coliforms and b-hemolytic Streptococci. This study showed no significant divergence betwixt bottles that were partially consumed and those that were non exposed to the baby's mouth for v out of half-dozen participants. All milk samples had colony counts in the acceptable range of < 105 colony forming units per milliliter (CFU/ml). Although this projection provides evidence that it may be safe to refeed a child a canteen of breastmilk, due to the minor sample size, further tests should be performed."

"With exception of participant F there was no change in total bacteria found in expressed human being milk that has been partially fed to an infant… Since participants E-F were showing a significantly higher amount of growth than participants A-C I examined the questionnaire to come across if I could find any common factors among each group. Due to small-scale sample size it was not possible to statistically analyze the data, but I could non detect anything outstanding that participants A-C did differently from participants E-F… Although I conspicuously specified that freshly expressed refrigerated milk was to exist provided for the study, participant F's milk was frozen… The well-nigh important lesson we tin can learn from this data is that in spite of high bacterial levels institute both control and partially consumed milk, none of the babies became sick. This provides some evidence that different standards need to be made for healthy full-term infants."

More than on Breastmilk Storage and Handling

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Source: https://kellymom.com/bf/pumpingmoms/milkstorage/reusing-expressedmilk/

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