If you run or work in a commercial kitchen, you’ve probably wondered: “Which fire extinguishers do we actually need, and where should they go?” That’s a smart question, because kitchen fires start fast, and the wrong extinguisher (or a badly placed one) can waste precious seconds.
Most commercial kitchens need a Class K extinguisher for cooking oil and grease, plus at least one ABC extinguisher for everyday fires like cardboard, trash, or electrical equipment. Placement matters just as much as the type, because you want to grab the right extinguisher quickly without trapping yourself near the fire.
Here’s the quick “do this” checklist:
Keep a Class K extinguisher near fryers/griddles, but not so close you’d reach through flames to grab it.
Add an ABC extinguisher for paper, wood, and electrical risks around the kitchen.
Place extinguishers along your escape path (near exits), so you can fight the fire while backing away.
Mount them visible, labeled, and unblocked—no hiding behind boxes or doors.
Follow NFPA/OSHA rules and train staff so everyone knows what to grab and when.
In the rest of this article, I’ll break down extinguisher types (what each one is for), the best placement spots in real kitchens, common mistakes, and a practical “walkthrough” you can use to check your own setup.
What Fires Happen in Commercial Kitchens?
Most kitchen fires fall into a few buckets. Knowing these helps you choose the right extinguishers.
Grease and cooking oil fires (fryers, sauté pans, griddles).
Ordinary combustibles (paper towels, cardboard boxes, wooden pallets).
Electrical fires (microwaves, refrigerators, breakers, wiring).
Info: A lot of people assume “fire is fire.” In kitchens, that’s not true. Grease fires need a different extinguisher than a trash-can fire.
Fire Extinguisher Types You’ll See in Commercial Kitchens
Class K (Wet Chemical): The “Must-Have” for Cooking Oil and Grease
Class K extinguishers are made specifically for high-heat cooking oils and grease. They work by cooling the fire and creating a soapy layer that helps prevent re-ignition.
Quick Tip: If you have deep fryers, Class K is non-negotiable. It’s the extinguisher designed for the exact fire risk you have.
Where it’s used:
Fryers
Griddles
Range tops
Woks and high-oil cooking stations
ABC (Dry Chemical): The All-Around Backup for “Regular” Fires
An ABC extinguisher covers:
A: paper, wood, cloth, trash
B: flammable liquids (some kitchen-related materials)
C: energized electrical equipment
ABC is great for a box fire, trash fire, or equipment fire where grease isn’t the main fuel.
Suggestion: Think of ABC as your “general coverage” extinguisher—especially useful in storage areas, near electrical panels, and near exits.
CO₂ or Clean Agent: Helpful for Electrical Areas
Some kitchens also use CO₂ or clean agent extinguishers near sensitive electrical equipment, because they don’t leave powder behind as ABC does. But here’s the key: CO₂ is not your best tool for hot grease fires, because it doesn’t cool the oil enough, and re-flash can happen.
Warning: CO₂ can be risky in tiny rooms because it displaces oxygen. Only use it where it’s appropriate, and the staff is trained.
Where to Place Fire Extinguishers in a Commercial Kitchen
Placement is about two things: speed and escape.
You want to reach an extinguisher quickly, but you also want to avoid getting trapped. A good rule is to place extinguishers so you can fight a small fire while moving toward an exit.
Best Placement for Class K
Put Class K extinguishers near the cooking line, especially by fryers and grease-heavy equipment. But don’t mount it right above the fryer or directly next to the hottest spot.
Danger: If the extinguisher is so close that you’d have to lean over a burning fryer to grab it, it’s placed wrong.
Good Class K spots usually are:
On a wall near the cooking line, a few steps away from the fryer
On the route toward the kitchen exit
Clearly marked and easy to grab with one hand
Best Placement for ABC
ABC extinguishers belong where “regular” fires could start or spread.
Common smart spots include:
Near the kitchen exits
In dry storage (cardboard and packaging are fuel)
Near dishwashing areas (lots of electrical + heat sources)
Near electrical panels (if allowed by your layout)
Fact: ABC powder can make a mess and damage some equipment. That’s still better than a fire—just be aware of the cleanup and possible equipment servicing afterward.
Height, Visibility, and Access: Small Details That Matter
Even the right extinguisher becomes useless if it’s blocked or hard to grab.
Here’s what “good access” looks like:
Mounted at a comfortable height (so most adults can grab it quickly)
Visible signage (especially if it’s around a corner)
No boxes, carts, or trash cans are parked in front of it
Easy to remove from the bracket without wrestling it loose
Quick Tip: Do a “two-second test.” Stand where staff normally work and ask: “Can I spot and reach an extinguisher in two seconds?” If not, fix the placement.
Don’t Forget the Hood Suppression System
Most commercial kitchens also need a kitchen hood fire suppression system over cooking equipment. This is separate from handheld extinguishers.
These systems are designed for cooking fires and are commonly built to UL 300 standards and installed per NFPA 96 guidelines.
Info: Handheld extinguishers are your backup and your “small fire” tool. A properly maintained hood suppression system is your big safety net for cooking line fires.
Training and Maintenance: The Part People Skip (But Shouldn’t)
You can have the perfect setup, but if nobody knows what to do, it won’t help.
Make sure staff know:
Class K for grease/oil
ABC for regular combustibles/electrical
To use the PASS method: Pull, Aim, Squeeze, Sweep
When to stop and evacuate (if it’s growing fast, get out)
Also, extinguishers need regular checks and professional servicing.
Suggestion: Assign one person per shift to do a quick visual check: pressure gauge in the green, pin in place, no damage, not blocked.
Conclusion
For commercial kitchens, the safest setup usually includes a Class K extinguisher near grease-heavy cooking equipment and an ABC extinguisher for general fires—with both placed where you can grab them fast while moving toward an exit. Keep them visible, unblocked, and easy to reach, and make sure your team actually knows which one to use.
If you want peace of mind (and fewer inspection surprises), it’s smart to have a professional review your kitchen layout, extinguisher types, and placement. I’d suggest reaching out to Freedom Fire Inspectors to help you confirm you’re covered and compliant.