Orcas

Study finds Bunsen burners fail to reduce bacterial contamination on lab benches

A Microbiology Spectrum study found that lit Bunsen burners did not lower airborne bacterial contamination compared with unlit ones, and in some trials contamination near lit burners was even higher. Researchers seeded lab air with Gordonia rubripertincta bacteria and compared Petri dishes placed near lit versus unlit burners across several burner sizes, consistently finding no protective benefit from the flame.