I have brewed 3 all-grain batches now that have a high final gravity: Imperial IPA: Target OG - 1.079, Target FG - 1.011, Actual OG - 1.070, Actual FG - 1.020, Yeast - US-05. Common attenuation ...
I've been taking the original gravity and multiplying the apparent attenuation of the yeast. For instance: 1.040 OG x 75% apparent attenuation = 1.010 expected FG But I never seem to get there. My ...