What is the proper process to handle ashes? Eg, how long to be certain the coals go out, where to put them, etc? Can a metal ash can with live coals flare up if it is not sitting on a combustible surface and it doesn't get knocked over? I live on a small lot and don't have very much room. I was considering getting a 55 gallon drum with a lid and locking band to put outside to dump the ashes in and deal with in spring. Good plan? I apologize if these are simple questions, I just want to be sure I am doing it right.