Freezing Milk and Bacterial Counts
Name: Barbara L. P.
Date: August 2003
Does freezing fresh (raw) milk affect the bacterial counts, as compared to
bacterial counts on fresh milk?
This is speculation, but I think the freezing would drop the bacterial count to some
limited degree. Many bacteria are quite resistant to freeze/thaw cycles. This would
make a good science project for someone out there: do plate counts of bacteria before
and after freezing the milk.....
Paul Mahoney, PhD
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Update: June 2012