I don't often deep fry, or have bacon in the mornings, but when I do, I always have the same question of what to do with the grease. Usually, I just put it in the city compost bin, figuring all the raked leaves, etc from others will dilute it enough for the city to handle it. But can I compost it? Or is there a yeast, a fungus, beetle, worm, or something that I could feed it to that would turn it into something useful? And how could doing so be relatively straightforward for someone like me with kids and a job and not a lot of time and money to experiment with?
I found a neat q&a about grease and oyster mushrooms which seems relevant, but I'm guessing I'd have to adopt mushroom farming as a hobby to be able to use that advice.