« on: November 14, 2010, 09:09:40 AM »
Brewed my first AG batch a week or so ago, an Irish Stout. I know that Stouts are not generally stronger beers, but I am concerned that my final alcohol content is low, way low. I am estimating it at at 2.58%. OG was 1.042 and FG was 1.018.
The cause has been rolling around in my head since first measuring the FG. Started thinking that it might be the efficeiency in the mash tun, but ran the numbers this AM and come up with a 79% efficiency which I don't think is unreasonable at all.
I am looking for some guidance on where i should be looking - is it more likely my issue is at the mash step or somewere else down the line? Any suggestions would be appreciated. Thanks.