A number of workers in the popcorn industry in the USA have developed severe lung disease after inhaling fumes from a flavouring agent known as diacetyl (2-3-butanedione) which imparts a butter flavour to food.


A number of workers in the popcorn industry in the USA have developed severe lung disease after inhaling fumes from a flavouring agent known as diacetyl (2-3-butanedione) which imparts a butter flavour to food.
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