Which of the following actions do not require that employees wash their hands and change gloves?

The reason walking to the food prep sink does not require employees to wash their hands and change gloves is that it is typically considered a transitional action that does not involve direct contact with food or food-contact surfaces. In food safety practices, handwashing and changing gloves are essential when a worker transitions from handling raw food, using the restroom, or engaging in activities that could contaminate their hands.

In contrast, using the toilet and handling raw poultry or meat both involve situations where contamination can occur, necessitating handwashing and glove changes to ensure food safety. Answering the telephone, while it may be seen as a non-food related task, still requires attention to hygiene since it can transfer bacteria to hands that then touch food or food surfaces. Therefore, walking to the food prep sink is an acceptable scenario that does not prompt the same hygiene protocols as the others mentioned.