I've been gathering bacon grease from my George Foreman grill. The grease is not just from bacon but also from sausages, frankfurters, beef, liver, pork, lamb, even some fish. So what I gather is really a mix of various things I grill.
Now, can you still call this bacon grease? In other words, is frying with this melange of various animal greases ok? If you include fish, aren't you getting some Omega-3 FAs, i.e., PUFA? If so, doesn't fish oil become quite unstable at room temperature and when reheated?
If so, then is the solution to gather all animal oils except for the fish? Perhaps the solution is to just use butter or ghee instead?