The problem with burning

31 Jul 2019 · 3 min read
It's a well-known fact that cigarette smoking is harmful and causes serious disease. But not everyone knows why that is.
Burning match

The basic ritual of smoking is simple. 

A smoker lights a cigarette, starting a high-temperature reaction known as burning, or combustion.

The consumer draws air through the lit cigarette for a certain number of puffs, until the tobacco leaves and paper are completely burned away, leaving only the ash.

The burning of the tobacco produces a complex mixture we call smoke.


What’s in cigarette smoke?

Cigarette smoke contains flavors from the tobacco blend, as well as nicotine that exists naturally in tobacco leaves. It’s these elements in the smoke that consumers enjoy while smoking. 

However, the very same burning process that releases the tobacco flavors and nicotine also produces over 6,000 chemicals, of which about 100 have been identified as causes or potential causes of smoking-related diseases, such as lung cancer, cardiovascular disease, and emphysema. 

Why Burning is the Main Problem

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For those adults who don't quit, there are better alternatives to continued smoking that don't burn tobacco

Since burning tobacco creates so many harmful chemicals, we asked our scientists and engineers to find other satisfying ways to deliver flavor and nicotine for current smokers. 

Through years of research and development, we’ve developed a new class of breakthrough products that do not rely on the principle of burning—and which we believe are a much better choice than smoking.

Since none of these products burn tobacco, they don’t reach the high temperatures needed to combust material and produce smoke. Instead, we have found several ways to produce a flavorful nicotine-containing aerosol that a consumer can inhale, but with significantly lower levels of harmful chemicals compared to the smoke of a burning cigarette.


Heated Tobacco Products (HTPs)

Our first products rely on two innovative ways to heat tobacco just enough to release nicotine and flavors, in a vapor form, without actually burning the tobacco. 

We have two products based on this heat-not-burn principle

  • One generates heat using an electric heat source that keeps the temperature of the heated tobacco unit strictly controlled. Around 13.2 million* smokers have already switched to this product and stopped smoking completely. 

  • The other uses a carbon heat source that the consumer lights. However, thanks to product development breakthroughs, the tobacco in the tobacco stick doesn’t burn. 

Products without tobacco

We have also found two other ways to deliver flavors and nicotine without using tobacco. Using nicotine extracted from tobacco leaves, they produce flavorful nicotine-containing aerosols in distinctly different ways. 

  • One heats liquid nicotine with an electric heat source to release a vapor, like an e-cigarette, but with significant improvements. Our new approach to e-vapor generation is currently being tested. 

  • The other produces an aerosol from nicotine powder without electronics.

While not risk-free, all of these breakthrough products are a better alternative to smoking—but the best choice is to quit or not to start smoking.

The Difference Between Tobacco, Smoke & Nicotine

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*As of June 30, 2022, PMI estimates that approximately 13.2 million adults around the world, excluding Russia and Ukraine, had already switched to IQOS and stopped smoking. IQOS user metrics reflect PMI estimates, which are based on consumer claims and sample-based statistical assessments with an average margin of error of +/-5% at a 95% Confidence Interval in key volume markets. The accuracy and reliability of IQOS user metrics may vary based on individual market maturity and availability of information.

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