My friends and I made a very good fondue on New Years Eve using
my new Le Creuset fondue pot. I had gotten the Denatured Alcohol
(4% methanol) from the local Ace Hardware Store. Everything worked
out well except there was quite a bit of black soot that collected
on the fondue pot. Fortunately it came off the pot easily but
was pretty nasty when it fell onto other surfaces.

What fuel burns cleanest to avoid the soot buildup?

thanks
Gerald