I purchased the big river brown ale from Midwest, and am planning on starting it this weekend. This is the first time I have used anything but extracts. I got the bag of grains, and I had them mill/crack/whatever you call it before bagging. My question is: there is a lot of dust in the bottom of the bag. Should i pour that into my water when steeping the grains? Should I wait and put it into my wort while its boiling? Should i discard it? Not sure what to do with the dust, any help would be appreciated.