Forget about Matchlight. It is pre-soaked in lighter fluid.
Basically, a typical briquette like Kingsford Blue Bag uses fillers in the briquettes and will produce more ash. Hardwood briquettes like Kingsford Competition, Stubb's and others are 100% hardwood, no fillers and will leave less ash.
The other choice is lump charcoal which is all wood and is not formed into briquettes. Lump typically burns hotter and leaves even less ash.
Of course, this varies by brand. Some are better than others.
I've seen folks here mention using all of the above in a UDS
. I prefer hardwood briquettes for longer cooks. They seem to last longer for me.
The Naked Whiz site (not what it sounds like
) has a lot of info on charcoal. Most of it is geared toward lump since that is what folks use in ceramic cookers like the Big Green Egg.
