I've found that if you get your pet mince from the butcher it's in frozen blocks at about 1.5 kg. Now, raw my dogs won't touch it doesn't matter if I put other meats through it or not. You have to boil it. Boil it and drain the fat (this is how you know if your getting good mince) I basically double the volume of meat when I've added everything else.. I add other meats to it, raw though along with vegies grains and herbs and minerals. I taught myself, just by trial and error. But the point is, to boil your butchers pet mince, strain it of fats and moisture. It's wrong to assume pets mince is raw meat ready to give to the dog's it's not it's gotta be cooked and mixed.