Right, that stuff: Mett - Wikipedia
There is a link there to a bunch of health regulations: not more than 35% fat, has to be sold on the day of production, etc. It’s a 70-page pdf.
https://www.gesetze-im-internet.de/tier-lmhv/index.html
https://cdn.website-editor.net/5f617c975b0c4126a9274d71f43f730b/files/uploaded/Fleisch%2520und%2520Fleischerzeugnisse.pdf
Theoretical risks are trichinella and toxoplasmosis— not sure what the infection rate is in practice, but apparently it is considered safe to eat.