How long should grills be turned on prior to completing food safety?

The correct answer is based on the need to ensure that grills reach the appropriate temperature to effectively kill harmful bacteria before any food is cooked. Preheating the grill for 30 minutes allows it to achieve a safe operating temperature, which is essential for food safety. This period ensures that any residual bacteria from previous use are eliminated, significantly reducing the risk of cross-contamination and foodborne illnesses.

In a fast-paced environment like McDonald's, maintaining food safety standards is crucial. A 30-minute preheating period aligns with industry best practices, optimizing both safety and the quality of the food prepared. This duration strikes a balance, allowing for sufficient heating without prolonging the wait time unnecessarily.