What is Popcorn Lung? Popcorn Lung is a serious, permanent lung disease caused by inhaling harmful chemicals like diacetyl, sometimes found in flavored vapes. Tips for Parents & Caregivers: Talk Understanding Popcorn Lung and Diacetyl: Risks and Prevention Vapestore Blog A Kernel of Truth: Diacetyl, Popcorn Lung and E Liquids Dinner Lady Pro Flavors Reddit E Cigs Free Of Diacetyl, Acetoin & Pentanedione Disease E Cigarettes Australia What Vapes Contain Diacetyl They may seem sweet and tasty, but each time you vape, you breathe in harmful chemicals. One of these chemicals is diacetyl, used in popcorn flavourings for its buttery taste. When eaten,