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 Popcorn Lunge durch E Zigaretten Diacetyl Faktencheck Popcorn Lung: A Dangerous Risk of Flavored E Cigarettes American Lung Association Major threat of incurable 'popcorn lung' as 17 year old falls seriously ill after vaping addiction