The flavor in various smoked meats comes from burning wood and exposing the meat to smoke. Meat can be flavored differently by using various types of woods and cooking methods. Recipes for curing meats can be very prized and may be held in utmost secrecy.
Creosote can also contain amounts of toxic chemicals depending on what a person burns, so caution is necessary near some fires. Since creosote also has bits of unburned material, too much build up can lead to chimney fires.