How to Use a Fire Extinguisher

Updated April 2026 · Based on NFPA guidelines and fire department training standards

Owning a fire extinguisher means nothing if you don't know how to use it. In a real kitchen fire, you'll have 30-60 seconds to act before the situation becomes uncontrollable. That's not enough time to read instructions. Learn the technique now so it's muscle memory when you need it.

Before You Fight: The Decision

Not every fire should be fought. Before you grab the extinguisher, ask yourself these questions:

• Is the fire smaller than a small trash can? If it's bigger, get out.
• Is the room filling with smoke? If you can't see clearly, get out.
• Is your escape route clear? If fire is between you and the exit, get out.
• Do you have the right extinguisher? If it's not rated for the fire type, get out.
• Has everyone else evacuated? Make sure others are safe first.

If you answered "no" to any of these, evacuate immediately and call 911. A fire extinguisher is for small, contained fires only. Your life is worth more than your kitchen.

The PASS Technique

Every fire department in America teaches the same four-step method. It works for every type of portable fire extinguisher.

P — Pull the Pin

Hold the extinguisher upright and pull the metal pin at the top. This releases the locking mechanism that prevents accidental discharge. Some models have a plastic tamper seal that breaks when you pull — that's normal. Don't squeeze the handle yet.

A — Aim at the Base

Point the nozzle or hose at the BASE of the fire, not at the flames. This is the most common mistake people make. Spraying at the flames does almost nothing — you need to hit the fuel source. Stand 6-8 feet away from the fire.

S — Squeeze the Handle

Squeeze the top handle firmly to discharge the agent. Most extinguishers have a 10-15 second discharge time, so don't waste it. You can release the handle to stop the flow if you need to reposition.

S — Sweep Side to Side

Sweep the nozzle from side to side at the base of the fire. Start at the nearest edge and work your way across. Move closer as the fire diminishes, but don't get closer than 3-4 feet. Continue until the fire is completely out.

Kitchen-Specific Tips

Grease Fire on the Stove

1. Turn off the burner if you can safely reach the knob
2. Do NOT move the pan — you'll splash burning oil
3. Do NOT throw water on it — this causes a fireball
4. Use the PASS technique with your ABC extinguisher
5. Alternatively, slide a metal lid over the pan to smother it
6. A fire blanket draped over the pan also works well

Oven Fire

1. Keep the oven door closed — oxygen feeds the fire
2. Turn off the oven
3. If the fire doesn't go out on its own within a minute, use the extinguisher
4. Do NOT open the door to spray inside — the rush of oxygen can cause a flashover

Microwave Fire

1. Keep the door closed
2. Unplug the microwave or turn off the circuit breaker
3. The fire should self-extinguish without oxygen
4. Only open the door and use an extinguisher if the fire persists after power is cut

After the Fire

• Even if you put the fire out, call the fire department. They'll check for hidden hot spots in walls and cabinets.
• Ventilate the area — dry chemical agent is an irritant
• Don't use the stove or oven until it's been inspected
• Replace or recharge your extinguisher immediately — a partially used extinguisher may not work next time
• If the fire was electrical, have an electrician inspect the wiring before using the circuit again

Maintenance Checklist

• Monthly: Check the pressure gauge — needle should be in the green zone
• Monthly: Verify the pin and tamper seal are intact
• Annually: Inspect for physical damage, corrosion, or clogged nozzle
• Every 6 years: Professional maintenance for rechargeable models
• Every 12 years: Hydrostatic testing for rechargeable models
• Replace disposable models when the gauge shows red or after 12 years, whichever comes first

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Frequently Asked Questions