OK, poking around the web and finding some interesting things. Seems there 's more than one way to skin a cat.
Here's one:
Ingredients:
15 Habanero peppers 1 quart 200 proof Ethanol Or as close as you can get, try Denatured alcohol from the hardware store.
Method:
In a blender, puree the Habaneros in as much Ethanol as possible. Let the mixture sit overnight at room temperature. Longer is better. Pour the resultant sludge through paper towels and place the liquid in a glass container. Begin to the liquid boil slowly using either an electric heating device (naked flames would be dangerous), or a vapor trap to remove the alcohol fumes safely. Continue until 90% of the liquid has evaporated. Remove the pot from the stove and cool. Look for a brick-red oil floating on the surface of the ethanol. If none is present, continue to boil the ethanol away periodically cooling the mixture to look for the red oil on the surface. Once the red oil appears, pour the red oil and the remaining ethanol into a long thin glass cylinder, use an eyedropper to suck off the oil and place it in a clean container. The red oil is fairly pure Capsaicin, probably 40% Capsaicin / 60% Capsaicinoids.
Then there's this:
You could just soak some chilli powder in strong alcohol (Vodka, gin, whatever) to get an extract that will give you a fair concentration.
If you add water to the extract then shake it with cooking oil then let it settle most of the capsaicin will end up in the oil.
Now that sounds pretty simple and fairly safe with no 'tear gas"/fire hazard scenario. So, if the alcohol dissolves the capsacinoids, will they then bind with some vegatable oil which could be seperated out without the danger of cooking it down? Sure, it wouldn't be as pure but still hell on wheels, I'm thinking.
then there's this, which is more like the first technique:
I believe I'll try to prepare a stronger still solution by slicing some peppers up finely, and soaking them in alcohol (vodka, 50% alcohol, 100 proof). I should then be able to (carefully!) cook off a good portion of the alcohol and water, leaving me with a much stronger solution.
What would happen, though, if I managed to cook off most of the alcohol, leaving water behind? Would the water-insoluble capsaicin precipitate out of the solution?
Yes, capsaicin would precipitate out, together with the oily stuff from the chillis. You will probably get some of the colour from the chillis too.
You could extract most of the capsaicin from the alcohol with oil. If you use a small volume of oil you will get a higher concentration. (not sure you need it and be careful, at high concentrations the stuff destroys nerve cells)
Hmmmm
So, should I try to add oil to the chile infused alcohol then seperate out the oil? What sort of oil should I use?