The Big Green Egg is the sophisticated version of the earthen and slated ovens that were a part of almost every civilization in the world and that have been around for more than 3,000 years now. The Chinese Qin Dynasty is thought to have first invented the Big Green Egg in the form of dome-shaped clay cookers. However, the Big Green Egg was made popular by the Japanese who made a more sophisticated version of these Big Green Eggs and called them the...