In order to prevent fire you need to try and keep heat sources and fuel apart. This is not possible in cooking, so you need to make sure thermostats on cooking equipment are working correctly to prevent the equipment from overheating and equipment is run at the correct temperatures. Frying is typically done in hot oil at around 170-180°C. If oil is heated at much higher temperatures it can catch fire.
Care needs to be taken so that a frying pans are never turned on with insufficient oil in them. Waste oil and scraps also need to be controlled to prevent them from catching fire.
You need to be careful about where you store packaging and waste to make sure it is not stored anywhere that may get hot and potentially start a fire.
Smoking is not allowed inside food premises but we also need to make sure any outside areas used for smoking do not create a potential fire risk. The areas should be away from waste bins and cigarette ends should not be put anywhere they may start a fire.