Questions: A cook wore single-use, gloves while forming raw ground beef into patties. The cook continued to wear them while slicing hamburger buns. What mistake was made?

The answer is the last one: The cook did not wash hands and put on new gloves before slicing the hamburger buns.

Explanation for each option:

1. The cook did not wear reusable gloves while handling the raw ground beef and buns.

   • This option is incorrect because single-use gloves are appropriate for handling food items like raw ground beef. The issue is not about using reusable gloves but about cross-contamination.

2. The cook did not clean and sanitize the gloves before handling the hamburger buns.

   • This option is incorrect because single-use gloves are not meant to be cleaned and sanitized. They should be discarded after use to prevent cross-contamination.

3. The cook did not wash hands before putting on the same gloves to slice the hamburger buns.

   • This option is incorrect because the problem is not about washing hands before putting on the same gloves. The gloves themselves should be changed to prevent cross-contamination.

4. The cook did not wash hands and put on new gloves before slicing the hamburger buns.

   • This option is correct. The cook should have removed the gloves used for handling raw ground beef, washed their hands, and then put on a new pair of gloves before handling the hamburger buns to prevent cross-contamination.

In summary, the mistake was not changing gloves and washing hands between handling raw meat and ready-to-eat food, which is crucial to prevent cross-contamination.