Studies of metalworking fluid microbiology coincided with the development of water dilutable metalworking fluids, also called water miscible, emulsifiable or-incorrectly-water soluble fluids. Although the first paper on the topic, A Study of the Nature, Growth and Control of Bacteria in Cutting Fluids, was published in 1941, serious and continuous research didnt start until a decade later.
A paper by Ratul Shah and Robert Donofrio published in 2012 purported to review the history and current state of knowledge of metalworking fluid microbiology, but did not include reference to E.O. Bennett, the first microbiologist to pursue metalworking fluid microbiology as a lifelong research focus. Between 1954 and 1991, he published 170 papers about the topic and associated health risks.