What does saponification do in the context of Class K fires?

In the context of Class K fires, which primarily involve cooking oils and fats, saponification plays a critical role. This process involves the chemical reaction between fats and an alkali, resulting in the breakdown of these oils and fats into soap-like substances. When a Class K fire occurs, using extinguishing agents that promote saponification is effective because it converts the combustible cooking oils into a non-flammable substance. This reaction not only helps in suppressing the flames but also prevents the re-ignition of the fire by creating a barrier of soap that encapsulates the burning materials, making it safer to handle. This is why understanding the role of saponification is essential for effective fire safety and management in kitchens where such fires are a risk.