> Here is the make-up of charcoal, before it gets burned. > > (percentages are approximate) > 10% limestone, just for weight > 3% sodium nitrate (to help it light quicker) > 4% starch (to help bind everything together) > 20% wood (yep, that's it) > 65% lignite coal from Canada Presuming this refers to our standard USA charcoal BBQ briquets, this would explain why they never seemed to behave too similar to 'real' charcoal, other than the fact they eventually ignite and glow and leave behind whitish ash. --- Brent