The wet chemical suppression system is what most people understand as the traditional fire suppression system, for instance in a commercial kitchen. This extinguishing method is specific to the cooking fires that may occur in residential and commercial settings. The suppressant is a liquid substance that, when sprayed onto the affected area, cools the flames immediately. Its effectiveness is due in part to its immediate response to fire. When the liquid comes into contact with cooking oils and fats, it reacts to produce foam, subsequently cooling the affected area and preventing the fire from reigniting.