Which of the following is an acceptable serving practice at a self-service bar?

Allowing guests to reuse glassware for beverage refills is an acceptable practice at a self-service bar. This practice is generally considered hygienic when certain conditions are met, such as ensuring that the glassware is cleaned and sanitized properly between uses. This allows for a more environmentally friendly approach, reducing waste by minimizing the use of disposable cups.

In the context of a self-service setting, it is important for establishments to provide guests with the option to refill or reuse glasses as long as appropriate sanitation measures are in place. This approach not only enhances the customer experience by fostering a more casual and relaxed bar atmosphere but also supports sustainability efforts by cutting down on single-use items.

Other options presented involve practices that could compromise food safety. For example, holding hot, potentially hazardous foods at 120°F does not meet the recommended temperature for holding hot foods safely, which should be at 135°F or higher to prevent bacterial growth. Storing raw meat next to Ready-to-Eat foods poses a risk of cross-contamination, and using the same plate for return trips to the self-service bar increases the risk of contamination as well. By choosing to allow glassware reuse with proper sanitation, it reflects a focus on maintaining food safety while enhancing service and minimizing waste.