Which of the following is NOT considered to be "cross-contamination"?

Cross-contamination occurs when a food or a food-contact surface comes into contact with something that is contaminated. One example is when an employee who was handling raw foods then handles ready-to-eat foods or surfaces that will come into contact with ready-to-eat foods - without first washing their hands or these surfaces. Another example is when raw foods requiring a higher cooking temperature come into contact with foods requiring a lower temperature of cooking. This can also happen indirectly, such as using the same utensils, cookware, or surfaces for foods requiring different temperatures of cooking. Cross-contamination can be prevented with good personal hygiene and cleaning/sanitizing methods.