Which brands contain diacetyl in their vape juices? Knowledge Kaiweili Digital Technology FlavorTudes 12 Pack SAMPLER Flavor Shots Vapemate Keeps Bad Chemicals Like Diacetyl Out of Your Eliquids Vape juice contains a long list of chemicals, many of which aren't even listed on the packaging. Testing has also shown that vapes labelled "nicotine free" can have high nicotine levels. 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 A Kernel of Truth: Diacetyl, Popcorn Lung and E Liquids Dinner Lady