Which class of fire is associated with cooking oil or grease in a galley?

The class of fire associated with cooking oil or grease in a galley is Class K. This classification specifically pertains to fires that involve cooking oils and fats, which are commonly found in kitchens and galleys. Class K fires require special extinguishing agents designed to handle the unique thermal and flammability characteristics of these substances.

In a kitchen environment, cooking oils have a high flashpoint and can ignite, leading to a situation that is different from other classes of fires. While Class A fires involve ordinary combustibles like wood and paper, Class B fires pertain to flammable liquids, and Class C fires involve electrical equipment, neither of which adequately address the hazards posed by cooking oils and fats. Therefore, using extinguishing methods appropriate for Class K fires, which might include wet chemical agents, is critical to safely and effectively putting out fires that originate from cooking oils.