What should be avoided when dealing with a fire caused by flammable liquids?

Using water to extinguish a fire caused by flammable liquids should be avoided because it can lead to a more dangerous situation. Water is denser than many flammable liquids and can cause them to float, spreading the fire instead of extinguishing it. Additionally, water can react violently with certain flammable liquids, such as certain solvents and oils, converting them into explosive mixtures or creating a hazardous mess.

In cases of flammable liquid fires, fire extinguishers designed for such situations – like foam or dry powder – are much more effective. Foam extinguishers can cover the burning liquid and effectively smother the flames by cutting off the fire's oxygen supply, while dry powder extinguishers can interrupt the chemical reaction that sustains the fire. Promptly calling emergency services is also critical for dealing with such fires, as they have the expertise and equipment needed to handle larger blazes safely. Thus, avoiding water for these type of fires is essential to prevent worsening the situation.