Fine fuel

n. Fuel with a high surface-area-to-volume ratio that dries readily and is rapidly consumed by fire when dry (NWCG 2005).

 

  • Discussion

 

Fine fuel generally consists of fuel in the one-hour timelag class (less than a quarter inch in diameter), such as grass, pine needles, tree moss, twigs, and some slash types, but has also been used in reference to fuel particles less than three inches in diameter. The term “light fuel” has been used synonymously with fine fuel (NWCG 2005). However, light fuel may also imply low fuel load, and the term fine fuel is therefore preferred.