77 Ill. Adm. Code 785.910
Cooling
Section 785
Section 785.910ย Cooling
Processed fluid milk products
including mix, except sterilized mix in hermetically sealed containers, shall
be cooled promptly after heat treatment or pasteurization to 45ยบ F. or lower
and maintained thereat until used.ย This does not preclude holding fluid milk
products at higher temperatures for a short period of time immediately prior to
freezing.