In school circa mid 1970's I'd read a then-classic novel which I would like to read again if I can identify it.
From what I remember there was a lot of discussion of the meat packing industry and the city of Chicago.
The only specifics I can remember is a hungry person (the protagonist?) opening some canned meat, which released some gas and "green ooze" indicating it had gone bad, and due to hunger they still ate it.
I have a hunch someone familiar with American literature literate will find this question trivial; if so, my apologies!