The Complete Fire Safety Kit for Commercial Kitchens
Commercial kitchen fire safety usually gets folded into a site's general fire plan. The same extinguishers get the same annual service as the rest of the building. That approach misses one risk a standard extinguisher line-up was never built for: burning cooking oil.
Hot oil does not behave like a bin fire or an electrical fault. Water or foam thrown onto it sinks through the surface and turns instantly to steam. Burning fuel gets flung into the air rather than smothered. That reaction is why cooking oil and fat fires carry their own fire class in Australia, Class F. It needs an extinguisher built specifically for the job, and a kitchen that only stocks what the rest of the building uses is carrying a gap it may not know about.
Why a Standard Extinguisher Falls Short
Most commercial sites standardise on ABE powder extinguishers, and for good reason. They cover a wide range of fire types across a construction site or warehouse floor. A commercial kitchen is a different environment, and the same logic does not carry over cleanly.
A wet chemical extinguisher works through saponification. The agent reacts with hot fat to form a soapy layer across the surface. That layer seals off the oxygen supply while cooling the oil below its ignition point. Nothing else mounted on a kitchen wall does both jobs at once. The seal matters as much as the knockdown, because cooking oil holds heat long after the flames drop.
An ABE powder extinguisher knocks the flame down, but the oil stays hot enough to reignite once the powder cloud settles. CO2 displaces oxygen for a few seconds and buys time, then the fire can return as the gas disperses. Water and foam are worse. Both can cause hot oil to erupt rather than settle.
The Extinguisher a Commercial Kitchen Needs
Wet chemical extinguishers are built to AS/NZS 1841.3, the Australian Standard covering specific requirements for wet chemical type extinguishers. They carry a combined A and F rating, effective on ordinary combustibles as well as cooking oil. We stock the Commander 7 litre wet chemical fire extinguisher built to this standard for commercial kitchen lines.
Placement follows the same AS 2444 rules that govern every other extinguisher on site. A few kitchen-specific figures are worth knowing before an audit catches them instead. A kitchen fire safety check should confirm:
- Mounted between 2 and 20 metres from the cooking equipment, close enough to matter and far enough to reach safely
- Base at least 100mm clear of the floor, handle no higher than 1,200mm
- Path to it stays clear of hot equipment, so staff are not crossing live burners to reach it
- Identification signage fitted above the unit, mounted between 2 and 2.5 metres so it reads on approach
A fire blanket earns its place next to the extinguisher rather than instead of it. It smothers a contained pan fire without discharging anything, which matters when the extinguisher sits behind the line and out of easy reach. We stock a fire blanket range sized from small kitchens through to full commercial formats, manufactured to AS/NZS 3504. The blanket nearest the stove should be rated for kitchen use, not a general workplace blanket pulled from the site's main kit.
Wet chemical agent conducts electricity, so it is not rated for switchboards or live electrical equipment. Kitchens carry both risks at the same bench: cooking oil and electrical faults side by side. Pair the wet chemical unit near the fryer with a CO2 extinguisher for the electrical side, rather than expecting one unit to cover both.
Extinguishers Aren't Everything
A portable extinguisher handles a fire someone can still safely reach. Larger commercial kitchens often pair that with a fixed suppression system built into the exhaust hood itself. That applies especially where multiple deep fryers or high-volume grills run at once. These pre-engineered systems fall under AS 3772:2020, the Australian Standard covering fire protection systems designed specifically for cooking equipment, hoods, ducts, and grease removal devices.
Whether a fixed system is required depends on the cooking equipment installed and the building's fire engineering. It is not a rule of thumb applied after the fact. That makes it a design-stage conversation with a licensed fire protection contractor, not a retrofit decision made once an inspection flags a gap.
Keeping the Whole Kitchen Compliant
Extinguishers need regular servicing to stay reliable. AS 1851-2012 sets a six-monthly inspection, a yearly detailed service, and a hydrostatic pressure test every five years. Any unit that has been discharged, even partly, needs servicing straight away rather than waiting for the next scheduled visit. Fixed suppression systems carry their own maintenance schedule under AS 3772. A kitchen that skips either because everything looks fine on the wall is the kitchen most likely to fail when an auditor checks the tag.
We supply wet chemical fire extinguishers, compliant signage, and cabinet housing built for commercial kitchen fitouts across Australia. If your kitchen has not had a proper fire safety review lately, call 1800 273 473 and we will tell you what your setup is missing.
