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From Kitchen to Danger Zone: What Causes Grease Fires



In just a few seconds, the heart of your home can turn from a place of warmth and joy to a danger zone. Grease, a common cooking ingredient, is often the unsuspecting culprit behind kitchen fires — and it can be difficult to know how to combat a grease fire if your primary firefighting experience involves spraying water on everything. However, understanding what causes grease fires and how to prevent them is crucial for maintaining a safe cooking environment. Let's delve into what triggers these dangerous incidents, how to extinguish the fire, and what steps you should take in the future to protect your home and family.


What Is a Grease Fire?

Grease is a staple in many culinary dishes, adding flavor and texture. However, its chemical properties make it highly flammable. When grease heats beyond its designated smoke point, it can ignite and lead to a rapid, uncontrollable fire. The presence of hot grease, combined with high temperatures, creates a perfect storm for grease fires in your kitchen.


Causes of Grease Fires

Excessive Heat

High heat is one of the primary causes of grease fires. When cooking oils are heated beyond their flashpoint, they can spontaneously catch on fire. To prevent a grease fire, it’s essential to monitor the temperature when frying or sautéing and use a thermometer if necessary to avoid overheating. 


Unattended Grease

Unattended grease is another significant danger. When left unattended on a heat source, grease can quickly surpass safe cooking temperatures. This is especially risky when using deep fryers or large amounts of oil. Always stay vigilant and never leave cooking oil unattended on the stove.


Absence of Proper Ventilation

Poor ventilation in the kitchen can exacerbate the risk of grease fires. Adequate ventilation helps dissipate heat and fumes, reducing the chance of grease reaching its flashpoint. Ensure your kitchen is well-ventilated with range hoods or exhaust fans to minimize fire hazards.


Ignoring Smoking Oil

Smoking oil is a clear sign that it has reached a dangerous temperature. Ignoring this warning can lead to ignition. If you notice oil starting to smoke, immediately turn off the heat source underneath the pan and let it cool down rather than continuing to cook.


What to Do in Case of a Grease Fire

Even when you follow all the necessary advice to prevent grease fires, they’re difficult to completely avoid. If you find yourself fighting a grease fire in your kitchen, here’s what to do:


Don't Use Water

Water + fire = problem solved, right? In many cases, water can help cool things down and fight the flames. However, you should NEVER use water to put out a grease fire. While it’s a misconception that water “fuels” the fire, using water on a grease fire can cause the burning grease to splatter, spreading the fire and making the situation much worse. 


Smother the Fire with a Lid

If a grease fire starts, immediately turn off the heat source and move the pan away from the hot burner. Once you’ve turned off the heat, cover the flames with a metal lid, cookie sheet, or other large metal pan to smother the fire, which helps cut off its oxygen supply. Avoid using glass lids, as they can shatter from the intense heat.


Close the Oven

Can oil catch on fire in ovens? Unfortunately, yes — and how to put out a grease fire in an oven requires a different approach than doing so in a pan. First, close the oven door to starve the fire of oxygen. Do not open the oven door until you are sure the fire is out. If the fire persists, call emergency services immediately.


Use Baking Soda

A small grease fire localized to one pan may be manageable if you have baking soda on hand. If the fire is still burning after putting on the lid, grab a generous amount of baking soda and carefully sprinkle it over the flames. Be cautious to avoid getting too close to the fire. 


Use a Fire Extinguisher

If smothering the fire doesn't work, use a Class B dry chemical fire extinguisher, which is designed for flammable liquids like grease. Keep a grease fire extinguisher readily accessible in your kitchen and ensure everyone knows how to use it properly.


Call for Help

If the fire becomes uncontrollable or spreads beyond the pan, evacuate the area immediately and call the fire department. It's crucial to prioritize your safety and the safety of others over property damage.


Steps to Prevent Grease Fires

Keeping a Clean Kitchen

Maintaining a clean kitchen is vital for fire prevention. Grease buildup on stovetops, ovens, and range hoods can easily ignite. Regularly clean these surfaces to remove any grease residue and reduce fire risk.


Using Caution When Cooking With Oil

Exercise caution when cooking with oil. Never overfill pans with oil, and use a thermometer to monitor temperatures. Stay attentive while cooking and keep flammable materials away from the stove. Having a safety plan in place and knowing how to react can save lives and property.


Stay Safe in the Kitchen!

Understanding the causes and prevention of grease fires is essential for kitchen safety. By recognizing the dangers of high heat and overheated grease, ensuring proper ventilation, and keeping a clean cooking environment, you can significantly reduce the risk of fires. Stay vigilant, prepared, and informed to protect your home from the potential devastation of a grease fire.


For professional assistance with fire damage restoration and more, trust DK Environmental. Our team in the Seattle area is ready to help you recover and restore your property. Contact us today for expert support and peace of mind, or browse our other informative articles for information on cellulose vs. asbestos, water damage restoration, and much more!


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