Fire
Use a fire piston
A fire piston ignites tinder by compressing air so fast that the heat of compression lights it.
John McCann — How To Use A Fire Piston
Step-by-step
Place a tiny piece of char cloth, true punkwood, or very fine tinder into the notch at the end of the piston rod.
Drop the rod into the cylinder so the tinder sits just inside the mouth.
Hold the cylinder steady and slam the rod down in one fast, firm stroke.
Pull the rod out quickly; the char should be glowing red.
Transfer the ember into a tinder nest and blow it into flame.
Tip: A dry, well-polished bore and a tight leather gasket are what make compression work. If it gets sluggish, rub a little beeswax or fat on the gasket.
Related outdoor skills
Educational reference only. Wilderness conditions change fast — practice in low-stakes settings, take a certified wilderness first-aid course, and confirm regional regulations before you rely on any of these skills in the field.

