Do Juul Pods Have Diacetyl The Promise of Vaping and the Rise of Juul DYK? Vaping coats lungs with potentially harmful chemicals. This can include chemicals such as: Diacetyl: This food additive, used to deepen e cigarette flavors, is known to damage small passageways in the lungs. Do Juul Pods Have Diacetyl How To Use Juul Pods Do Crystal Bar Vapes Have Diacetyl? The Facts About Diacetyl: What Vapers Need to Know My Vapery UK , The notion that vaping causes "popcorn lungs" due to diacetyl in e liquids is based on outdated information.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