Any tips for making charcloth?
I experimented quite a bit, trying everything from mattress ticking, denim, sweatshirts, T-shirts, cheese cloth, dryer lint, unraveled spools of cotton thread, cotton kite string, cotton balls, cotton batting, and raw cotton. Obviously I did
NOT use nylon, rayon, or Polyethalene...
With the sheets of cloth I tried cutting into one inch squares and laying flat in the can, crumpled in the can, large sheets crumpled in the can, cut with regular scissors, pinking shears, and torn. I tried the test items packed tightly and I also tried them very loose inside the can.
All the above were 'cooked' both in the BBQ grill with glowing briquettes piled around the can or sitting on top of the coals, and indoors on a gas stove. (I REALLY do not recommend doing this indoors unless you either have a very powerful vent over your range or are willing to stand there through the entire cooking cycle keeping the escaping gases lit and burining to avoid the smoke.)
The idea behind it all; heat up the cotton material in a relatively
oxygen-free environment until all the burnable matter is gone, leaving 'charcoal' cotton. The better sealed your can during the burn, the better the results. Allowing air into the can while burning will result in nothing but ashes inside.
The results; I found cans with very tight lids worked best, but I've seen people suggest using Altoids boxes, and other rather loose fitting top tins. I tried them and they didn't produce as well as the paint-type can lid. My best results came out of a can that originally held paste floor wax. Car wax, shoe polish cans... these would all work fine. The bigger the can, the more char cloth you can make at one time. A can of car wax will give you enough char to last 100-200 fires depending upon how much YOU like to use at one time.
I found that raw cotton produced the best char, with cotton balls and cotton batting coming in a close 2nd. T-shirt, denim, and mattress ticking tied for third.
The proceedure: Use a finishing nail to punch a small hole in the middle of the can lid for smoke and gasses to escape. Fill the can with as much as you'd like, but
do NOT pack it down tightly. Half full works as well as full.
Put the lid on tightly! Use what ever fire source you'd like but I don't recommend burying the can in the coals. Laying it on top of BBQ briquettes or on the gas burner of the stove is fine, but you will need to turn the can every few minutes so it cooks evenly. High flame on the stove is fine.
After just a couple of minutes you will see smoke coming out of the vent hole. If you are indoors, light this and it will continue to burn, keeping the room smoke-free. You don't need to do this outdoors of if you have a strong vent over the stove. A LOT of smoke will come out, and really shoot out several inches. Keep your eye on this, and as the smoke decreases, turn the can. Keep doing this until there is no more smoke or gas coming out of the can. Check the vent with a lit match to be sure. When there is nothing coming out take the finishing nail and stuff it into the vent hole, sealing it, and take the can off the fire. Let it cool completely. If you open it before it cools the char will turn to ash.
It takes about 15-30 minutes to do this, depending upon the size of your can. Then another 30 minutes to cool down. If done this way you 'should' have a can full of some absolutely perfect char cloth. If you've overcooked it it will be brittle and crumble. If you undercooked it it will be brown instead of black. If it's black and still soft and holding together, you have made good char cloth. :thumbup:
Package it in some air/water proof containers and you are ready to make your flint strikers. Just go and get some old files!
Stitchawl