Flame is bad. Flame does nasty things to food. It makes soot and it makes deposits of various chemicals that are not too good for us. The last thing you really want to see licking at your food while it's on a grill is an actual flame.
Alton BrownSo I quit my job and went to the New England Culinary Institute for the full two years and worked in the restaurant industry after that until finally I thought I had a grasp on what I needed to do what I do.
Alton Brown