Ottomail
New Member
I've been all grain brewing for about 20 batches now. I have often (with many different beers) run into the problem of not fermenting down to my target final gravity. For example I recently brewed a Hefeweisen using 5.50 lbs of 2row and 4.5 lbs of flaked wheat. The original gravity was 1.047 and the target final was 1.013. I pitched at 65F with a big starter. The fermentation was rolling very strong by the next morning and the temp was up to 68F. Fermentation had pretty much stopped by the fifth day and I checked the final gravity on day 15. I reached 1.023. Substantialy higher than my target of 1.013. I have tried in the past to restart batches like this with fresh yeast. In the end I got no more fermentation. I'm thinking that I must be producing too many unfermentable sugars some how. If this is the case what could I be doing to cause this? I am mashing in at 154F and mashing out at 168F.