Tinder is easily combustible material used to start a fire. Tinder is a finely divided, open material which will begin to glow under a shower of sparks. Air is gently wafted over the glowing tinder until it bursts into flame. The flaming tinder is used to ignite kindling, which in turn is used to ignite the bulk material, to produce a fire.
Birch bark being used as tinder in a campfire
Fire making, fire lighting or fire craft is the process of artificially starting a fire. It requires completing the fire triangle, usually by heating tinder above its autoignition temperature.
Typical contents of a tinder box. From left to right: flint, fire striker, char cloth and piece of mushroom.
Maasai warrior lighting a fire, blowing on it to add oxygen that encourages the fire to spread
A fire plough (left), as opposed to a hand drill (right)
Firesteel and flint used in Dalarna, Sweden in 1916.