Gene Cafe CBR-101 Air Quality Report addresses the potential hazards of air emissions from the coffee roasting process. This, specifically to components diacetyl and 2,3-pentanedione (known to cause a variety of lung conditions), found by USA National Institute for Occupational Safety and Health (NIOSH), are naturally produced and released when coffee beans are roasted.
Gene Cafe in the USA has engaged an environmental engineering firm to test the air quality for the home roasting environment (our in-house kitchen) with the Gene Cafe CBR-101.
The report concluded:
Potential emissions of diacetyl and 2,3-pentanedione of the CBR-101 home roaster were minimal and well below existing and proposed occupational exposure limits.
CAUTION: Use the Gene Cafe in a ventilated area, especially with an exhaust pipe connected to the chaff collector and routed out of the environment to transport fumes away from people.