Which of the following is a sign of a pest infestation in a food establishment?

The presence of droppings and gnaw marks is a clear indicator of a pest infestation in a food establishment. These signs suggest that pests, such as rodents or insects, are actively invading the area. Rodents leave behind droppings that can be small and dark or larger, depending on the type of rodent. Gnaw marks indicate that the pests are chewing on materials, which may include food packaging or structural components of the establishment. Noticing these signs is critical for ensuring food safety, as pests can carry diseases and contaminate food supplies.

In contrast, brightly colored packaging and food stored in clear containers do not suggest infestation; these elements relate more to food presentation and storage practices. Clean, organized storage areas would typically indicate good management and hygiene practices, which would deter pest infestations rather than signal their presence. Therefore, recognizing droppings and gnaw marks is essential for identifying and addressing pest problems early in order to maintain a safe food environment.