Vaping, Diacetyl, and Popcorn Lung: Is the Threat Real? Vaping360 Understanding Popcorn Lung and Diacetyl: Risks and Prevention Vapestore Blog 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, Do Geek Bars Have Diacetyl? EightVape 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