Give an example of a critical control point in food processing and the associated critical limit.

• A. Refrigerate at 40°F for 2 days.
• B. Cook ground beef to 165°F for 15 seconds; internal temperature at or above 165°F.
• C. Leave cooked meat at room temperature.
• D. Cool hot foods in an open container.

Answer: (B)

The main idea is that a critical control point is a step where you actively control a hazard, with a clear, measurable limit that tells you when control has been achieved. Heating ground beef to a precise temperature for a specific time is a classic CCP because heat treatment directly reduces dangerous pathogens. The exact requirement—165°F and holding or ensuring the internal temperature stays at or above 165°F for about 15 seconds—gives you a concrete, testable rule. If the product doesn’t meet that threshold, you take action to bring it into spec, such as re-cooking or stopping production, to prevent unsafe product from proceeding.

Why this example stands out: it links a processing step (cooking) to a defined, verifiable limit that directly correlates with hazard control. The other options describe safety practices or storage conditions, but they don’t provide a single, measurable critical limit tied to a specific hazard in a way that guarantees the hazard is reduced at a CCP. Refrigeration is essential, but the stated 2-day time frame isn’t a precise limit for a particular hazard. Leaving meat at room temperature is unsafe and not a controlled, verifiable step. Cooling in an open container mentions safety practices but lacks a defined, enforceable cooling rate or temperature limit.