What must be vented to the exterior in a food establishment?

In a food establishment, greasy equipment must be vented to the exterior to ensure proper air quality and hygiene. This is particularly important because greasy equipment, such as deep fryers and ranges, produces a significant amount of smoke, steam, and airborne grease particles during cooking. Venting this type of equipment helps to prevent the buildup of grease within the establishment, which could pose a fire hazard and create unpleasant odors.

Additionally, venting to the outside helps to maintain a safe working environment for food service employees, reducing the risk of respiratory issues caused by smoke and fumes. Properly designed venting systems help to efficiently remove contaminants from the kitchen area, thus promoting a cleaner and more sanitary setting for food preparation.

While other equipment may have maintenance or ventilation considerations, the primary focus with greasy equipment is the need to minimize fire risks and ensure appropriate air quality conditions, making this answer the most relevant in the context of food safety and compliance.