Is flour or baking soda really suitable for extinguishing grease fires?
Do not use flour, it may explode!


Use the pot lid to smother the fire.
Use a fire blanket - read the instructions, watch a you tube demo. People who think they know what they're doing often spread it or end up burned.
Salt, will put out small fires, such as a pan fire, you won't have enough salt to smother a pot or absorb the heat.
Good for putting out small fat flare ups on a barbie plate.