I came across this old article about ADM, written in 2000:
These comments gave me a hearty chuckle:
Though a zealous security force watches the public roads around the plant, making unauthorized photography difficult, a drive around the 1,125 acre complex is an olfactory experience like none other on the planet. (A visitor) recently described it as "an effervescent, anaerobic, enzymic, protean, protein-rich cornucopia of odors, emanating from the various stages and permutations of the highly controlled organic decomposition of America's heartland."
Very interesting perspective indeed.
And yes, it's a true delight for the old olfactory.
Out for now.....
Matt