i just started making barf patties. it's exactly the same stuff i was feeding before, just ground up (rmbs, fruits/veggies, muscle meat, etc.). any ground beef i use is stuff that i grind myself because i do agree with barb about the contamination.
i haven't really decided how i feel about it yet though. it is quite a pain in the butt to have to prepare all the meats and veggies, so they'll fit down the grinder chute, and then mix everything and seperate it into meals. but on the other hand i don't have chicken drippings on my floor anymore. i'm not willing to buy premade patties though, why should i pay someone a ton of money to do something i can do myself?