I let any fat harden and then wrap it up in newspaper and toss it in my green bin, the contents of which go to an industrial composting facility. They allow this, as well as bones, meat and dairy that can't go in your backyard composter. The industrial composter operates at a higher heat and it will break down these items.
Your are completely correct that animal products should not go in your backyard compost pile. I'm pleasantly surprised by how much some people understand.
I was shocked and appalled when I listened to a talk radio show at our local university where they interviewed the campus composting "expert." Someone called in and asked what he thought about using human manure in the backyard compost pile. He said he had some concerns about trace pharmaceuticals, but if you are healthy and not taking any heavy duty meds, it would be fine to compost your own personal manure.
No, it is not. It is most emphatically not
a good idea to put human manure in your compost pile and not because the trace chemicals from drugs you are taking might damage the plants grown with the compost. "Trace" means the concentration is very, very low. On the other hand, the concentration of fecal coliform, enteric viruses, e. coli, etc. in raw human manure is very, very
high and the chances of getting really sick by growing vegetables in compost made with (most likely incompletely digested) human manure are very, very
high. Especially carrots which are grown in contact with the soil/compost and are frequently eaten raw.
Uh .. yeah, don't do that ...