Which brands contain diacetyl in their vape juice? Knowledge Kaiweili Digital Technology Vapes are clouded in misconception . They contain many of the same toxic and cancer causing chemicals found in regular cigarettes. One of these ingredients is diacetyl, used in popcorn flavourings for its How do I figure out if my vape juice contains diacetyl or not? : r Vaping Which brands contain diacetyl in their vape juices? Knowledge Kaiweili Digital Technology