Here is the citation for the study that I suspect prompted the 10 hour guideline:

Barger, J., Bull, P. A comparison of the bacterial composition of breast milk stored at room temperature and stored in the refrigerator.

My document doesn't show the publisher or date...but I am suspecting it was published in the International Journal of Childbirth Education....maybe in the late 80's, early 90's??? Because the research was actually funded by an ICEA grant. Small population sample, n=30, but here is what they concluded:

"...there is no statistically significant difference in bacterial colonization between breast milk stored at room temperature and breast milk refrigerated for up to ten hours in duration." The author mentions that, "It is not within the scope of this study to determine the bacterial levels at which expressed human milk may be safely fed to full term, healthy infants."

About 5 years ago the duration of storage guidelines produced by a major pump manufacturer were revised, and fresh milk at room temperature recommendations were reduced by quite a few hours. The research supporting the revised guidelines is cited in their literature and on handouts they provide to clients that are available on their website. 

Michelle H. Kinne ICCE CD(DONA) CLE
www.DoulaDiva.org


 


 







 


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