Which type of jewelry is allowed to be worn on hands or wrists while preparing food?

The plain wedding band is allowed to be worn on hands or wrists while preparing food because it is simple and does not have any stones or intricate designs that could harbor bacteria or become dislodged during food preparation. Jewelry that is flat, such as a plain band, is less likely to accumulate food particles or pose a risk of contamination. This aligns with food safety practices that emphasize minimizing potential sources of contamination in food handling environments.

In contrast, other types of jewelry, such as gold bracelets, rings with stones, and chain bracelets, can have crevices or features where bacteria can thrive, and they may come into direct contact with food, increasing the risk of contamination. It's crucial to maintain a clean food preparation environment, and minimizing jewelry is a key part of those guidelines.