Jet fuel is a type of aircraft fuel used for aircraft with turbine engines such as turbo-jet, turbo-fan and turbo-prop aircraft and turbo-charged helicopters.
Turbine engines generally have the ability to use a variety of petroleum fuels, but all types of jet fuel nowadays have high-purity kerosene and additives to prevent corrosion, rust, freezing at low temperatures or ignition at high temperatures.

A decent jet fuel is known to have a high ignition temperature, high thermal value with no precipitate or rust, safe to transport and work with. It also requires a low risk of damaging the hot parts of the engine turbine and to flow perfectly in cold weather.
Jet A fuel for non-military aircrafts are divided into three main categories:

Jet A (A) and A1 (A1) fuels: Jet A fuel is the standard jet fuel in the United States. And in other parts of the world, the A1 standard is used.The ignition point of both of them should be higher than 38 degrees Celsius and their self-ignition temperature should be higher than 210 degrees.

Jet B fuel: This type of fuel is a combination of about 30% kerosene and 70% gasoline. This type of fuel has a lower freezing temperature and does not freeze below 60 degrees Celsius. Its flash point is lower and therefore more dangerous fuel. This type of fuel performs better in cold weather and is only used in very cold condition.