In a cigarette, heating (providing energy to) tobacco (fuel) in the presence of oxygen results in combustion producing smoke.
~ 900°C A BURNING CIGARETTE
When a cigarette is lit, it burns at temperatures up to 900°C. At these temperatures the generation of more than 6,000 different chemicals is triggered. Many of which, are considered harmful or potentially harmful.
~ 400°C ONSET OF COMBUSTION
At these high temperatures the process of tobacco combustion begins. The tobacco ignites, resulting in the tobacco burning and smoke being generated.
< 247°C NICOTINE IS RELEASED
Nicotine is one of the reasons why people choose to smoke. It is one of the factors, alongside taste and ritual, that plays an important role in switching adult smokers from cigarettes to smoke-free products. While nicotine is addictive and not risk-free, it is not the primary cause of smoking-related diseases.