Fire Extinguishers for Cooking Oil Fires

Fire Extinguishers for Cooking Oil Fires

The auto ignition temperature of burning cooking oil is higher than other typical combustible liquids so the standard Class B foam and dry powder extinguishers can be ineffective. This lead to the development of specialist Class F (US class K) fire extinguishers for cooking oil fires that use a chemical reaction called saponification to put out cooking oil fires. Commonly termed Wet Chemical extinguishers they use an alkaline solution which reacts with the cooking oil or fat to make a non-flammable soap. Once only found in commercial and industrial kitchens Class F and the versatile Class ABF versions are now available in smaller canisters and disposable aerosols for domestic and leisure markets.

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