Now that the fervor has cooled a bit (about the broth) please check my two corning methods, posted on another thread, about how I make corned beef. My "corning brine" is offered in TWO versions . . . with and without the chemical "Saltpeter."
If using a broth with Saltpeter, I would dump the broth after cooking the beef. If using a broth WITHOUT Saltpeter, I would definitely reuse it to prepare boiled dried beans or other similar dishes.
Have a good one! [;)]