What action is required for yellow towels at closing?

The appropriate action required for yellow towels at closing is to throw them away. This practice is in place for sanitation and safety reasons. Yellow towels are often designated for specific cleaning purposes, such as cleaning restrooms or other areas that require a higher level of sanitation awareness. Once they have been used for these tasks, they can no longer be guaranteed to be clean or free of contaminants, so disposal helps ensure a safe environment for both staff and customers.

Choosing not to dispose of them could lead to potential health risks, as well as tarnish the establishment's hygiene standards. The other actions suggested, such as recycling, storing, or using them for drying, do not align with the health and safety protocols established for managing cleaning supplies effectively. Proper disposal after use is crucial to maintaining a clean and safe restaurant environment.