The introduction from an excellent report linked to in the article TopCat posted.
"On the killing beds you were apt to be cov-
ered with blood, and it would freeze solid; if
you leaned against a pillar, you would freeze
to that, and if you put your hand upon the
blade of your knife, you would run a chance
of leaving your skin on it."
Upton Sinclair’s classic American novel
The Jungle, the story of an immigrant fam-
ily from Lithuania working in the abattoirs
of Chicago, was published in 1906 to both
critical acclaim and public outrage due to
its unflinching portrayal of the dire condi-
tions in a meat industry dominated by big
business and rife with exploitation and un-
sanitary practices"
Report looks mostly at
German meat processing industry and how workers power, pay and conditions have been eroded over the last 30 years. Some stuff on other EU countries and how collective bargaining has offered protection in some but been circumvented in others. Also looks at a new law in Germany that will outlaw subcontracting in the industry and briefly at other measures EU wide.
Bonus points for the Mafia comparison.
I missed too many pages of this thread to catch up so not sure how it got to meat but there is a bit of information on what the EU is doing to address some of the exploitative practices migrant workers face. I get that it won't be enough, will take too long and things won't necessarily be enforced but also can't see things here getting any better. Work visas just increase the potential for employers to exploit people.
https://www.etui.org/sites/default/files/2021-05/HM23_Change a long time coming for subcontracted slaughterhouse workers_2021_0.pdf