Wiping cloths and rags that are used for wiping down non-food contact surfaces should be:

Wiping cloths and rags used for non-food contact surfaces are essential tools in maintaining cleanliness and preventing cross-contamination in food service environments. Storing these cloths in a sanitizing solution is crucial because it ensures that any contaminants present on the cloths are effectively neutralized. This practice minimizes the risk of spreading bacteria and pathogens when the cloths are reused for cleaning surfaces.

The sanitizing solution helps maintain the cleanliness of the cloths between uses, allowing for repeated applications without compromising hygiene. By keeping the cloths in a state that reduces microbial growth, food safety practices are upheld, safeguarding both the food and the customers.

In contrast, the other choices do not provide adequate methods for ensuring the cleanliness of wiping cloths. Discarding cloths after a year is impractical and does not address immediate hygiene concerns. Laundering after each use could be overly burdensome in many operational settings, and wringing cloths out frequently in hot water does not provide the continuous sanitization needed to prevent contamination. Storing cloths in a sanitizing solution is the most effective approach to maintaining safe and sanitary conditions in food service environments.