I did my first AG brews this weekend.
Saturday I did 10 gallons of Edwort's pale ale and all went well, got 79% ef.
Then Sunday I did the Stone IPA clone and only got 66% ef.
At first I was like "What the hell?" But then I remembered something.
Friday night when I was getting and crushing the grains at my LHBS I had crushed all the 16# of 2-row for the APA and was well into the 2-row for the IPA when I just happend to see that the lock-nut for the mill's addjustment had worked it's self lose.
I looked the the grains and I could see a lot of uncrushed grain, then looked down at that 20 some pounds I had already done (with a hand crank corrona mill) and thought that there is no way I'm going to go back thru and recrush all that.
I readjusted the mill and cranked on.
Now I see what a difference this makes.. I will be ordering my own mill some time this week.