How should a Class K extinguisher be stored in humid kitchen environments?

• A. In a damp cabinet near the sink
• B. In a dry, temperature-controlled location that minimizes corrosion and is protected from heat sources
• C. In direct sunlight on a metal shelf
• D. In a locked freezer

Answer: (B)

In humid kitchen environments, the key is keeping the extinguisher dry and in a stable, controlled temperature so it stays reliable when you need it. Class K extinguishers use a wet chemical agent, and moisture can cause corrosion of the metal parts, degrade seals, and affect the pressure gauge, all of which can reduce performance or render the unit unusable. A dry, temperature-controlled location minimizes these risks and helps keep the agent stable and the overall system ready for use. It should also be protected from heat sources, since heat can raise internal pressure and damage components or seals, and direct sunlight or damp storage can accelerate wear. So the best practice is storing it in a dry, temperature-controlled spot away from heat sources.