I've used tallow a little but not much. What I have used, I rendered myself. I've heard several good things about it like high smoke point, better healthwise, adds good taste, doesn't soak in and make foods greasy, doesn't go rancid and probably a few other things that I forgot about. I have accumulated a pretty decent amount of trimmings and they were hogging up space in my freezer so I put them in a crockpot and they are warming up now. It's pretty hard when it's cold and not as easy to dish out as lard is. Anyone use it? Any good or bad things to say about it or how to use it? Would you use it in a deep fryer?