Quick answer
Tinder is the finest, driest material — it catches a spark directly. Kindling is the next stage up: small sticks and splinters that catch from the burning tinder and produce enough heat for full-size fuel. Tinder catches the spark, kindling builds the flame, fuel sustains it.
The core difference
Three stages of a fire, in ascending order of size.
- tinder — very fine and dry: dry grass, birch bark, char cloth, cotton fluff. Catches a spark.
- kindling — small sticks and split wood, roughly pencil to thumb thickness.
- fuel — full-size logs, added once the kindling is well alight.
Why skipping a stage fails
A spark cannot ignite a log because the surface-area-to-mass ratio is wrong — there is too much wood to heat. Each stage exists to raise the temperature enough for the next. Trying to light kindling directly with a spark is the usual reason a fire will not start.
The words
Tinder is Old English, related to a verb meaning to kindle, and gave us tinderbox. Kindle is from Old Norse kynda, to set fire to.
Frequently asked questions
What is the difference between tinder and kindling?
Tinder is fine material that catches a spark. Kindling is small sticks that catch from burning tinder.
Can you light kindling with a match?
Sometimes, but reliably you want tinder first — kindling has too much mass for the flame to raise to ignition quickly.
What counts as good tinder?
Very fine, very dry material — dry grass, birch bark, char cloth or teased cotton.
