I recently bought a propane burner so I could brew on my back deck. The problem is the burner produces black soot (carbon) all over the bottom of my kettle. This black soot makes clean up a pain and a potentially life threatening mishap if I were to get that black soot on the carpet and could not clean it up before my wife saw it. My question is has this happened to anyone else and is there a way to combat this? Thanks for any advice.