Popcorn Lung: The Deadly Secret in Your Vape! Did you know that the sweet, tempting flavor in your e liquid could be hiding a chemical called Diacetyl? This chemical, which tastes , The notion that vaping causes "popcorn lungs" due to diacetyl in e liquids is based on outdated information. , ., While diacetyl was once used as a flavoring agent in some e liquids and linked to worried about the Popcorn Lung diacetyl rumour (please read) Vaping Forum Planet of the Vapes The "cloud" produced by a vape isn't just steamit's an aerosol filled with ultrafine particles and toxic chemicals. From heavy metals to cancer causing agents, the ingredients list is a lot more dangerous 1 in 3 teens who vape say they get e cigarettes online, including through social media apps. (PMC study) Parents: Monitor online activity, start the conversation, and stay informed. Learn more at