What would be the best way to butcher human meat and most efficiently or what would be the most efficient way to farm humans?
These are two completely different questions
Free-range humans is the easiest.
- Leave the humans on Earth.
- Start "Move to a new planet Corp LTD"
- Offer free land grants for new settlers on a planet 1500 light years away
- Pop your willing settlers in their cryochambers / the snack freezer
People will leave expecting to never return and they'll bring their whole families or just themselves if they have no-one.
This will leave more room on Earth for more humans to breed, your snacks will freeze themselves and there is no communication with a planet so far away so nobody will notice for thousands of years that they're even missing.
Just imagine the poor of China, Africa or India that have no land and no future. You'll have huge waiting lists to fill your snack cupboards up.
Health checks and immigration rules means the beef will grade itself.
It's food that farms itself.....