Note: This guide is purely fictional and should not be used for real-world applications.
Place the potassium nitrate in a container and ignite it. Ensure the area is well-ventilated and free of flammable materials.
Use the ABC extinguisher to suppress the flames. Aim the spray at the base of the fire.
Wrap the burning material in the fireproof blanket to smother the flames and prevent spread.
Keep a close watch on the fire until it is completely out. Once safe, evacuate the area and contact emergency services.