Reevaluating Heat-Not-Burn Tobacco Products

Understanding Heat-Not-Burn Technology

Before trying one of the latest tobacco products on the market, it is essential to reconsider the implications of heat-not-burn (HNB) cigarettes. Despite marketing claims suggesting they are less harmful, recent research indicates otherwise.

Marketing Claims by Philip Morris International

Philip Morris International (PMI) promotes its HNB tobacco cigarettes as “a revolutionary technology that heats tobacco without burning it, providing the true taste of tobacco with no smoke, no ash, and less odor.” However, this assertion warrants scrutiny.

Research Findings from Swiss Universities

A team of researchers from the universities of Bern, Lausanne, and Geneva conducted a study to investigate the validity of PMI’s claims. Their findings, published in the Journal of the American Medical Association/Internal Medicine on May 22, 2017, challenge PMI’s marketing narrative.

Study Methodology

The researchers employed standardized, internationally accepted methods to analyze PMI’s I-Quit-Ordinary-Smoking (IQOS) disposable tobacco stick in comparison to traditional tobacco cigarettes. Using a rate of two puffs per minute, they collected exhaled smoke in a glass filter for comprehensive analysis.

The IQOS disposable tobacco stick, which is soaked in propylene glycol, is heated to 350 degrees Celsius (662 degrees Fahrenheit) using an electric blade, creating a smoking experience similar to that of conventional cigarettes. Propylene glycol is recognized as safe by the U.S. Food and Drug Administration and serves as a tobacco preservative.

In contrast, traditional cigarettes burn at temperatures exceeding 800 degrees Celsius (1472 degrees Fahrenheit).

Key Discoveries from the Study

The research revealed that HNB cigarettes contain 84% of the nicotine found in conventional cigarettes. While nicotine itself is not classified as a carcinogen, its inhalation is linked to tumor development, which may lead to cancer.

The study identified various harmful chemicals in the smoke, including carbon monoxide, acrolein, benzaldehyde, formaldehyde, and acenaphthene. The percentages of these chemicals compared to traditional cigarettes were 82%, 50%, 74%, and 295%, respectively. No other chemicals exceeded 41% of their counterparts found in regular cigarettes.

The research compared IQOS disposable tobacco sticks with brands such as Marlboro and Heets against traditional cigarettes like Lucky Strike and Blue Lights. Although HNB cigarettes are available in at least 19 countries, they are not yet sold in the United States.

Survey Insights and Study Limitations

A 2015 internet survey from Japan indicated that both former and current smokers, particularly those aged 15-39, showed an inclination towards HNB tobacco sticks.

This study is significant for illuminating the potential health risks associated with HNB cigarette use, indicating that the smoke can also be considered secondhand smoke. However, a limitation of the research is the relatively small number of cigarette brands analyzed for comparison between HNB and conventional products.

Conclusion

Overall, the study emphasizes that while the inhalation of smoke may be temporary, the health consequences could be far-reaching.