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Stuck fermentation

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Chomp

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Feb 14, 2014
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So I brewed a strong scotch ale about a month and a half ago. I have brewed this recipe numerous times and never had any problems. OG was 1.084, made a starter. The plan was to keg 4 gallons and then age the other gallon on some oak. I was in a rush so I pulled a sample but didn't actually check it until later that evening when I got home. It was only at 1.038 and tasted very sweet. Ussually this recipe gets down to 1.017-20. I figure I will pick up some more yeast on my way home. Is it ok if I just pour a little in the gallon container and the rest into the keg? Or should I siphon the keg back into the carbon? Mash temp was 160 wyeast Scottish ale 1728. Any help would be great thanks
 
So I pitched a new pack of wyeast 1728 about 24 hours ago, I'm guessing there will be a longer lag time because of the lack of oxygenation in this situation. Any idea how long I should wait before trying other options? Also moved it upstairs, temp came up 2° to 66.
 
I'd give it a week and try it again. Repitching, honestly, probably won't fix it, your yeast wouldn't be dead after a month and a half, more likely than not there is something else in the conditions that is either slowing or stopping the yeast. Moving the beer to a warmer area may help though, but often times with a stuck fermentation there isn't much you can do, at this point you have done everything you can though.
 
Mash temperature seems high enough to reduce fermentability. Did you mash at 160° with the previous brews?
 
Mash temperature seems high enough to reduce fermentability. Did you mash at 160° with the previous brews?

I did, but I was not using my herms setup yet so maybe it was not as consistent of a mash temp.
 
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