The election of the Catholic Pope is a major geopolitical event – the leader of the Catholic Church represents and influence the 1.4 billion Roman Catholics around the earthly concern . Its election hap in a conclave , where the electing cardinals are locked in theSistine Chapeland select the new pontiff . Since the 1800s , pot signals have been used to communicate the results of the voting .

The smoke is make by burn the ballot , and originally just think of that no Holy Father had been elect . It was only in the conclave of 1914 , which elected Benedict XV , that different hummer colors were used for the first meter . There are two now , but there also used to be a secret third one for a while .

It is the white smoke ( fumata bianca ) that is the most important . The ballots are burned with three substances to make the smoke white . One is potassium chlorate , which is a white self-coloured used in mouthwashes andfireworks . Then there is lactose , the type of sugar that ’s found in Milk River . And in the end , there is resin ( also know as colophony ) , a resin that get along from pine Tree and other coniferous tree . Once , the white-hot smoke seem , bells will surround across Christendom and the Protodeacon of the College of Cardinals will go in world and say : " Annuntio vobis gaudium magnum ; habemus Papam ! " , meaning " I announce to you a expectant joy , we have a Alexander Pope ! "

But before the joy , we have the black heater ( fumata nera ) . Any voting in which no candidates experience more than two - third of the votes does n’t result in the election of a Holy Father . In that case , the ballots are burned with three different chemicals ; one is potassium perchlorate , then there is anthracene , and finally , sulfur .

There used to be a chicken smoke , too ( fumata gialla ) . That was to screen the stove and the irregular lamp chimney used to burn the ballots . However , since 2005 , the traditional stove that has been used since 1939 has been plug into to a modern one that burn colorful fastball , so that there can be no doubt as to whether the smoke is white or disgraceful – something that had get confusion in the yesteryear .