How to Safely Extinguish a Grease Fire: A Step-by-Step Guide
What needs attention
- The legacy sequence repeats the lid step and places other methods between those repetitions, which can delay the safest decision
- The key decision is not which household powder to find; it is whether a small contained fire can be covered immediately without sacrificing escape
- Class K is a North American label; India uses Class F for cooking oils and fats
- Water sinks below oil, flashes toward steam and can violently eject burning oil from the pan
- Moving a pan combines flame, hot liquid and trip risk and can spread fire through the escape route
- A towel or cloth can ignite, hang into the oil or expose the user's hands; a fitting rigid lid is the clearer household instruction
- A lid must remain on during cooling because hot oil can re-ignite when oxygen returns
- PASS is not enough by itself; rating, distance, discharge pattern, escape position and user training matter
- Wet-chemical Class F protection works differently from generic dry powder and is selected for hot cooking oils
- Commercial fryers can contain far more fuel and stored heat than a household pan and need engineered controls and fixed suppression
- Fire in the hood or duct is no longer a contained pan fire
- Burn first aid begins only after scene safety; oil, toothpaste and ice can harm tissue or complicate care
Controls that reduce risk
- Keep a clean, dry, fitting lid or flat metal baking sheet beside the pan before oil is heated
- Clean accumulated grease from the hob and hood according to appliance instructions
- Keep cloth, paper, packaging, aerosol cans and oil containers away from flame and hot surfaces
- Stay in the kitchen for frying and turn heat off before leaving
- Use an appropriate thermostat-controlled fryer for repeated or deep frying
- Keep children and pets outside the cooking zone
- Teach every adult the words: cover, heat off, do not move, do not add water, escape
- Post 112 and the full address near the exit
- Confirm apartment stairs and the outside meeting point are clear
- Have a competent provider assess Class F extinguisher needs and train intended adult users
- For a commercial kitchen, maintain fixed hood and duct suppression, fuel shutoff and cleaning records
- Do not place a general extinguisher where its use would force a person toward the stove or away from the exit
- Add burn first-aid supplies that do not encourage creams or home remedies
- Practise the decision boundary with the stove cold: contained pan plus lid at hand versus immediate evacuation
- After any event, replace used extinguishers and inspect cooking, LPG, electrical and ventilation equipment before reuse
Understand and apply the guidance
Introduction
A grease fire can escalate rapidly and become dangerous if not handled correctly. It’s crucial to know how to respond swiftly and effectively to put out a grease fire without putting yourself or others at risk. In this article, we’ll provide you with a step-by-step guide on how to safely extinguish a grease fire, ensuring that you have the knowledge and confidence to react appropriately in case of an emergency.
Step 1: Assess the Situation
Before taking any action, assess the size and severity of the grease fire. If the fire is small and contained, you might be able to handle it on your own. However, if the fire is large, spreading rapidly, or you’re unsure about how to proceed, it’s safer to evacuate the area immediately and call the fire department.
Step 2: Turn Off the Heat Source
The first action you should take is to turn off the heat source. If the fire is in a pot or pan on the stove, carefully slide the lid over the pan to smother the flames and cut off the oxygen supply. Do not attempt to move the pot or pan, as this can spread the fire.
Step 3: Do NOT Use Water
Using water to extinguish a grease fire is one of the most dangerous mistakes you can make. Water and grease do not mix; when water comes into contact with hot grease, it can cause the grease to splatter and spread the fire. This reaction can lead to serious burns and the fire becoming even more uncontrollable.
Step 4: Use a Fire Extinguisher
If you have a Class K fire extinguisher specifically designed for kitchen fires, you can use it to put out the grease fire. Remember the acronym “PASS” (Pull the pin, Aim at the base of the fire, Squeeze the handle, Sweep from side to side) to operate the fire extinguisher effectively. Stand a safe distance away and aim the extinguisher at the base of the flames, not directly at the flames themselves.
Step 5: Baking Soda or Salt
If you don’t have a fire extinguisher or if the fire is small, you can use baking soda or salt to smother the flames. Sprinkle a generous amount of baking soda or salt onto the fire to create a barrier that suppresses the flames by cutting off their oxygen supply. This method is effective for small grease fires and can help contain the situation.
Step 6: Use a Metal Lid
If you weren’t able to turn off the heat source in time, and the fire is still burning, you can use a metal lid to cover the pan. Make sure the lid is larger than the pan to prevent oxygen from getting in. Using an oven mitt or a towel, carefully slide the lid over the pan to smother the flames. Turn off the burner and let the pan cool down completely before removing the lid.
Step 7: NEVER Use Flour
Using flour to extinguish a grease fire is extremely dangerous. Flour is combustible and can ignite, causing the fire to spread. Never attempt to put out a grease fire with flour under any circumstances.
Step 8: Call for Help
If the fire continues to burn despite your efforts or if it becomes unmanageable, evacuate the area immediately and call the fire department. It’s better to let professionals handle the situation to ensure your safety and the safety of others.
Conclusion
Knowing how to put out a grease fire safely is an essential skill that can prevent a small incident from turning into a major disaster. Remember to assess the situation, turn off the heat source, avoid using water, use a fire extinguisher or baking soda/salt, and never use flour. By following these steps and prioritizing safety, you’ll be well-equipped to handle a grease fire and protect yourself, your loved ones, and your property.
Common unsafe practices
- Throwing water on burning oil
- Picking up or carrying the burning pan
- Leaning directly over flame to place a lid
- Using a wet lid, wet cloth or damp fire blanket near hot oil
- Throwing flour, sugar or other combustible powder onto the fire
- Searching for salt or baking soda while the fire grows
- Using too little powder and scattering burning oil
- Lifting the lid to check whether the flame has stopped
- Turning on an exhaust hood after fire starts and drawing flame or smoke into greasy ductwork
- Applying a generic extinguisher without confirming Class F suitability
- Standing where the fire lies between the user and the exit
- Continuing an extinguisher attempt after flame spreads beyond the pan
- Trying to shut an LPG valve through flame or dense smoke
- Using the lift while evacuating an apartment building
- Applying ice, butter, oil, toothpaste or home remedies to a burn
- Restarting the stove before LPG, electrical, hood and suppression systems are inspected