Boil milk for five minutes and then prepare as for pasteurizing,
keeping it at temperature of 147° F. for thirty minutes and cooling it
by the same process as given for pasteurization.
Boiling milk kills all bacteria. It is said that heating of milk to
this degree impairs its nutritive value.
_Note._—Spores develop quickly in lukewarm milk, therefore the
necessity of cooling it quickly and placing it in refrigerator.