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Pasteurization is defined
as the process of heating milk to at least 145°F ., and holding it
at, or above, this temperature continuously for at least 30
minutes, or heating it to at least 161°F ., and holding it at, or
above, this temperature continuously for at least 15 seconds,
in approved and properly operated equipment. The latter
method is predominant today. Following this treatment, the
milk is cooled promptly to 45°F., or lower .
"Pasteurized," when used
to describe a dairy product, means that
every particle of such product shall have been heated in properly
operated equipment to one of the temperatures specified in the table at
the end of this paragraph, and held continuously at or above that temperature for the specified time (or other time/temperature relationship
which has been demonstrated to be equivalent thereto in microbial
destruction):
Temperature Time:
145°F. 30 minutes
161°F. 15 seconds
191°F l second
204°F 0.05 second
221°F 0.01 second
If the dairy ingredient has a fat content of 10 percent or more, or if
it
contains added sweeteners, the specified temperature shall be increased by
5°F.
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