King Arthur brand has a flour they call "white wheat flour" which they say is 100% whole grain ground from a different kind of wheat than normal whole wheat flour is ground from (a red wheat). Our local mill sells something called Graham flour which is supposedly similar. Has anyone ever heard of Graham flour? Do you know if it is 100% whole grain? Does it sound like what King Arthur calls "white wheat flour"? Our local mill's flour runs $7.25 for 50 lbs through our coop as opposed to the $1.79 for 5 lbs of King Arthur.