Which item can be worn by a food handler while preparing food?

The choice of a plain metal band ring as an item that can be worn by a food handler while preparing food is appropriate due to its non-porous surface and simple design, which minimizes the risk of food contamination. Such rings do not have crevices where bacteria can thrive, making them easier to clean and less likely to harbor pathogens.

In a food safety context, it is crucial to minimize any potential sources of contamination. Jewelry that is ornate or has intricate designs can trap food particles and bacteria, which is why items such as fake fingernails or jewelry with stones are discouraged. Similarly, an unwashed apron poses a risk of transferring contaminants to food, and wearing a watch can also trap food residue, making it inadequate for maintaining food safety standards. Thus, the plain metal band ring stands out as the most suitable option for food handlers.