Sustainable Aviation Fuel

(Acronym: SAF) A term used to describe an aviation jet turbine fuel that meets the criteria of the Sustainable Aviation Fuel Users Group (SAFUG) and/or the Roundtable on Sustainable Biofuels. It is typically created from second generation biofuel feedstocks, such as algae.

"Sustainable Aviation Fuel is going to revolutionise the airline industry"
or
"SAF is a good investment"