I buy the Kingsford briquettes for most of my smoking needs. But a couple pf times I've used the "hot and fast" method and have used Cowboy lump charcoal and it has burned fine. Their lump charcoal is just plain old charcoal with no additives.You didn't include it in your pic, but I saw it on the sign: Cowboy. DO NOT BUY - it is junk. The Kingsford Professional is a really good briquette though. I switched to it from the original Kingsford last year and have been really pleased.