I've had a hell of an evening, I just burnt my "aseptic pineapple juice" drum (by way of Kenya!) for the first time. The burn went about as well as I'd expected, it was a pain to get the fire lit due to recent rains and the fact I haven't cut air vents yet, but half a bottle of lighter fluid made things manageable.
I think all in all I spent 7 hours tending the fire, refueling it, drinking beer and generally enjoying myself. I was very pleased to see what I guess to be about 1/3 the liner start to shrivel up and flake away in patches. I plan on burning the drum a few more times to see how much of that liner I can knock out, I'm not so fond of climbing in there with an angle grinder to chase out stubborn remnants.
Funny thing about my drum, seems my liner was white and seemed almost paint like even though I primarily see people discuss a hard epoxy liner that's sort of tan. Anybody encountered a white liner before?