Rather than throw away chicken soup carcasses, I've been looking for ways to make the most of the old bones. Bigger beef bones seem more challenging, but probably contain even more valuable components. I've read that bones can be burned and ground up to make home made bone meal to fertilize the garden - and similarly, buried with wood ash to break down into fertilizer. But what about utilizing the rest of the nutrients, like calcium, in those bones? I've read about people throwing bones in their blenders and food processors, but I'm not willing to degrade mine - I already don't like how grinding egg shells has pitted the plastic top of my old coffee grinder. Anyone know other ways to grind up old soup bones?