Diacetyl and 2,3-pentanedione in air sampled on café baristas

Scope

Ten cafés, nine of them sampled, belonging to the US coffee roasting and packaging companies studied, all at facilities not flavouring coffee during the survey, some on the roasting site and some elsewhere; the café results are not separated by location. The barista results come from 14 personal air samples worn by 13 baristas over a work shift: occupational air composition, not the smell of a coffee shop; neither compound is named as the cause of any smell; not every coffee shop; the study's health and exposure-limit findings are outside this claim.

How this claim was checked

SmellBook checked this claim against the source's own words, so that the claim says no more than the source supports. This does not repeat or re-test the study itself.

The statement the claim rests on was found word for word in the abstract fetched from the named service, and an editor read the full abstract against every part of the claim. Abstract from Europe PMC (ebi.ac.uk/europepmc).