Flammable fats correspond to which class?

• A. Class F
• B. Class A
• C. Class E
• D. Class C

Answer: (A)

Cooking fats and oils are grouped into Class F, which tells you the fire involves fats rather than ordinary materials or other fuels. This classification matters because fires of fats require media that can saponify and cool the fat rather than water, which can spread the fire by dispersing hot fat droplets. In practice, extinguishers designed for fats (such as wet chemical or other media rated for Class F) are used, while the methods for ordinary combustibles, flammable liquids, energized electrical, or metals do not apply here. Recognizing this category ensures you choose the correct suppression approach for cooking-oil fires.