Hi Bob
> You use your knife to carve off little magnesium flakes until you have a tiny pile.
OK, it's freezing cold, I'm wet and hypothermic, and I am trying to shave a magnesium block with a knife to make chips. What happens?
* I lose most of the chips because my hands are shaking.
* My hands are cold and can't hold the knife properly, so I slip and cut my free hand to the bone.
* When I finally get enough chips and manage to get a flame to them, they flare up and burn my hand – and possibly melt the Bic lighter creating a fire ball.
* A few seconds later the chips are all burnt up and the kindling is still damp.
Contrast this with the use of a few chips of Esbit or equivalent:
* I open the Nalge pill bottle and shake a couple out. They are white and easy to see. Then I close up the bottle and put it away safely.
* I balance one on a splinter of wood and hold my Bic under it. It catches on fire gently, so I place it next to the other Esbit chips under the kindling.
* The chips burn steadily for a few minutes, allowing me to place kindling above the flame to start a fire.
If the latter sounds like actual experience – yes. Cast iron stove in a mountain hut. Esbit chips provided. Routine stuff.
Cheers
PS: I have bulk magnesium rod here in the workshop. It makes nice shavings on the lathe. So I have some experience with lighting the stuff too. :-)
PPS: Another quite safe fire starter is a tiny bottle of kerosene. NOT white gas but kero. Kero burns quite slowly and gets a fire going well but safely. It is possible to add a little more kero to the fire IF and only IF you do it very carefully – quite unlike trying to add white gas and creating an explosion.
(Avgas is risky/bad, metho is risky and not very effective, diesel is poor – too smoky, heating oil is poor, smoky, Jet-A etc is OK, and JP-8 is probably OK. TMI)