diacetyl
/daɪˈæsɪtəl/
noun
- A chemical compound with a buttery flavor, used in food flavorings and produced naturally in some fermented products.
- Some breweries test their beer for diacetyl levels to ensure quality.
- Workers in flavoring factories may be exposed to diacetyl, which can be harmful if inhaled.
- Diacetyl gives microwave popcorn its buttery taste.