What is the typical critical limit at the pasteurization CCP?

• A. A controlled time–temperature exposure to inactivate pathogens
• B. A specific shade of packaging color
• C. A fixed shelf-life after processing
• D. A target milk fat percentage

Answer: (A)

The main idea is that the critical limit at the pasteurization CCP is the specific time–temperature exposure required to inactivate pathogens. This is the validated parameter that guarantees the process achieves the needed lethality. For milk, common validated limits are a high-temperature short-time exposure, such as heating to 72°C and holding for 15 seconds, or a lower temperature held longer, like 63°C for 30 minutes. These conditions are chosen based on evidence to reduce pathogens to safe levels. Other options—packaging color, fixed shelf-life after processing, or target fat percentage—aren’t about the lethal effect of pasteurization and thus aren’t the CCP’s critical limit. Continuous monitoring ensures the batch actually reaches the required time–temperature exposure, and any deviation triggers corrective action.