Stupid Barrel Burn Question
So I have aquired a barrel. I started a big ol' fire in it and burned it until the fire deptartment showed up and told me to put it out. (About 90 minutes). Did I mention I live in the city and I have a real PITA for a neighbor.
I have a buddy outside of town that is gonna let me bring the barrel over to his place and burn it out properly this weekend. Trouble is, I am not sure what the heck I am doing and I need to get it right.
How long do I burn it? I assume there is a visual way to know when I am done. The barrel has blue paint on the outside (with some character added by some surface rust). The inside appears to have a deep red coating on it. Might be worth mentioning that the red surface had some white streaks on it that looked like latex paint but felt a little harder.
After my 90 minute burn, 85% of the outside is white. The bottom 15% around the air intakes is still blue. The white almost looks like a thin layer of ash.
Inside the barrel is a thick soot and ash covering over the red pigment. It is still red. Almost reminds me of a hard acrylic coating. I can wipe the soot off and some red pigment comes off as well but it is still red underneath.
I need some help figuring out how to burn it clean. How hot, how long, method to use, lid on or off?
Any suggestions would be greatly appreciated.
Peace, Love and BBQ (omg... I am a BBQ hippie)