For Inedible RenderingSource Tallow/grease Protein solids Moisture wt% wt% wt%Packing house offal and boneSteers 30-35 15-20 45-55Cows 10-20 20-30 50-70Calves 10-15 15-20 65-75Sheep 25-30 20-25 45-55Sheep 25-30 20-25 45-55Hogs 25-30 10-15 55-65Dead stock (whole animals)Cattle 12 25 63Calves 10 22 68Sheep 22 25 53Hogs 30 28 42Butcher shop fat and bone 31 32 37Blood none 16-18 82-84Restaurant grease 65 10 25Poultry offal 10 25 65Poultry feathers none 33 67