Step 1: Understanding the Problem:
The question asks to identify a Critical Control Point (CCP) within the HACCP (Hazard Analysis Critical Control Point) framework applied to pasteurized milk processing.
Step 2: Detailed Explanation:
• Critical Control Point (CCP) Definition: Under food safety guidelines, a CCP is a specific step or procedure in a food process where control measures can be applied to prevent, eliminate, or reduce a biological, chemical, or physical food hazard to an acceptable level.
• Primary Hazard in Milk: The primary food safety hazard in raw milk is biological, specifically pathogenic vegetative bacteria such as Coxiella burnetii (the most heat-resistant pathogen found in milk), Mycobacterium bovis, Salmonella, and Listeria monocytogenes.
• Elimination Step: The pasteurization step (e.g., High-Temperature Short-Time pasteurization at $72^\circ\text{C}$ for at least $15$ seconds) is designed specifically to eliminate these vegetative pathogens.
• Monitoring Parameters: Pasteurization temperature and holding time are critical parameters that must be strictly monitored using automatic flow-diversion valves. If the temperature drops below the set target, the milk is automatically diverted back to the raw milk tank. This satisfies all requirements of a CCP.
• Other Steps: Steps like packaging, transportation, and labelling are essential for quality and maintaining cold chains (Prerequisite Programs or oPRPs), but they do not serve as primary kill steps designed to eliminate pathogens.
Step 3: Final Answer:
The pasteurization temperature and time combination is the primary Critical Control Point in milk processing, making option (B) the correct choice.