First I made sure that their trough was filled with lay mash, and their water was nice and fresh. Then I put a good amount of scratch on the ground. Then I put half lay mash and half scratch in a bowl and poured bottle of beer into it. They loved it. Now I have a very happy flock. 17 of my 21 partook of it. I got the idea when I read about people making fermented feed. Have any of you had any experience with this? And what are the pros and cons?