Grease-laden kitchen ducts presents a serious and common fire hazard, as kitchen extract systems are coated with grease, oil, and other residues that may ignite fire that can quickly spread throughout the exhaust system. Since poorly maintained kitchen exhaust ducts are a fire risk, restaurants and food establishments are required to have kitchen duct cleaning performed routinely, to avoid grease build-up over time and to keep systems clean and safe.
The industry standard is to get kitchen exhausts cleaned every three months; however, wood-burning or charcoal-burning stoves may need to be cleaned every two weeks or every month at least. Kitchen exhaust cleaning is a standard part of the routine maintenance of any cooking establishment, as it plays a central role in fire prevention and must be done on a regular basis.
The benefits include removal of fire hazard by addressing oil and grease accumulation inside the duct, removal of insect-food source, and a safe working environment with reduced food contamination and extended equipment life.