Don't know if this is the right area or not, but I am getting into brewing my own beer and reading EVERYTHING to gain knowledge. This really isn't a question about the brewing itself, but about a by-product. Somewhere in my reading of specialty/partial or full grain brewing, someone said to remove the grain bag "throw it away or make dog biscuits with it". Was that just a joke or is it possible to make dog biscuits with the mash?