2VAC5-510-560: Cooling

After heat treatment or pasteurization, processed fluid milk products, including mix except for sterilized mix in hermetically sealed containers, shall be cooled promptly to 45°F (7.2°C) or lower and maintained at that temperature until used, provided that storage or holding tanks used to store milk, milk products, frozen desserts, or frozen desserts mix shall be cleaned and sanitized when empty and shall be emptied at least every 72 hours. Fluid milk products may be held at higher temperatures for a short time immediately prior to freezing when applicable to particular manufacturing or processing practices.