When Trash Becomes Treasure (re-using egg shells!)
You know we don’t like to waste anything here at The Free Range Butcher so we’ve compiled a short list of things you can do to reuse your egg shells. First though, a few facts:
An egg shell is made of calcium carbonate, which means that each medium sized egg shell has 750-800 mgs of calcium.
The shell makes up 9-12%...