Which symptom indicates potential pest problems in a food establishment?

Visible droppings are a strong indicator of potential pest problems in a food establishment. Droppings from common pests such as rodents and insects suggest that these pests are present in the facility and may pose a risk to food safety and sanitation. The presence of droppings not only indicates active infestation but also highlights areas in the establishment that may require urgent attention in terms of pest control measures.

Monitoring for droppings is crucial because these can contaminate food and surfaces, posing a risk of foodborne illness to customers. Identifying and addressing the source of the droppings can help to mitigate health risks and maintain a safe environment for food handling.

Other symptoms, such as mold growth, temperature fluctuations, and excessive condensation, could indicate problems related to sanitation, equipment failure, or moisture levels but do not directly signal pest activity as clearly as visible droppings do. It's essential to focus on signs of actual pest activity to implement effective pest management strategies.