Hi Jan,



Prolacta have done some research on this see below:



Human Milk Stability

This formal experiment completed over a 12 month real time period examined vitamins, lipid oxidation and protein content of pasteurized whole milk stored at -20C. Results showed stability for at least 12 mths of storage. (Data on file Prolacta Bioscience 2007)

 

An evaluation of cold chain stability was also conducted. Raw human milk subjected to several storage conditions, including thawing and refreezing. The finding showed that under laboratory conditions milk can be stored at 8 C for 24 hrs or  at 23 C for 4 hrs and can be frozen up to three time with no significant bacterial growth. 

http://www.prolacta.com/research.php



I think that breastmilk is far more robust than we give it credit for!

Penny Reimers

IBCLC 

Durban, South Africa

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