A stuck fermentation is when the yeast stop fermenting early, leaving the final gravity reached considerably above the expected final gravity. Can be caused by temperature swings, poor yeast condition or using a strain with insufficient alcohol tolerance.

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Nothing visible happening in fermenter after three and a half days - what should I do?

My first brew has been in the primary fermenter for three and a half days (brewed Saturday night, it's now Wednesday morning). It's in a plastic bucket fermenter with an airlock. There are no bubbles ...
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5answers
4k views

How do you tell if your fermentation is stuck?

How long do you wait before taking corrective action if your fermentation doesn't start? Are there any other good ways to tell if it's just taking a while to get going?
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4answers
839 views

Wheat Ale “stuck” at 1.025?

I am trying to brew a stronger wheat ale, and after 9 days in primary, I seem to be stuck at 1.025. My OG was 1.070 and I pitched a smack pack of Wyeast Bavarian Wheat at about 70F. I had a very ...
5
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3answers
3k views

How can I restart fermentation on a stuck strong dark belgian ale?

What can we do to restart fermentation that got stuck over the winter? Our club brewed about 7 gallons of this recipe in November. Primary went well, but then the weather got cold and the yeast went ...
5
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4answers
3k views

36 hours after pitching straight from the vial, no signs of fermentation, what now?

After pitching noticed yeast was one month past 'best date' (thanks local homebrew shop).No perceptible activity at +36 hours. No krausen, airlock isn’t bubbling wort looks the same as when i poured ...
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3answers
4k views

My cider stopped fermenting until I swished it around in the bucket a bunch, then continued. Is that normal?

My malted cider had been brewing after about a week in my plastic brewing bucket to the point where the little 'hat' thing in my airlock fell onto the 'neck' (no internal pressure). I opened it up ...
4
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1answer
4k views

How do I know when a starter has hit 'high krausen', when using a stir plate

I've been advised to pitch an alcohol tolerant yeast "at high krausen" into a barley wine where the fermentation has slowed (OG 1.101, now 1.035). But if I've got it on a stir plate, how do I know ...
4
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1answer
623 views

I think I ruined my first brew

After years of finding excuses to not home brew, I finally gave in and bought a starter kit from Brewers Best and ingredients for my first batch; Muntons Connoisseurs Export Pilsner. Anyway, it's ...
4
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2answers
83 views

Re ferment beer after transferring to keg and force carbonating it

I brewed a 5 gallon batch of IPA beer, the OG was 1.067 and 2 weeks later it only dropped to 1036. A stuck fermentation I was told after I transferred it from my fast fermenter to two 3 gallon kegs. I ...
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6answers
2k views

Warming up a demijohn / carboy

As a continuation to my previous question about a very slow fermentation of sloe wine, I think my demijohn is just too cold where it is. I haven't taken readings - I'm still fuzzy on how - but judging ...
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3answers
150 views

What is the 'cake'?

I've been looking into ways to restart unfinished fermentation and some sources talk about using a Cake, or yeast cake from previous brews. They also talk about pitching on the cake. I've searched to ...
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3answers
101 views

No bubbling after 3 days and no SG reading at start

I'm doing my first brew and it doesn't seem to be going too well! I know there are loads of questions along these lines but I couldn't find one that matches my scenario closely. I did all the prep ...
3
votes
2answers
84 views

Stuck second fermentation - suphites to blame?

I'm making a sparkling elderflower wine. It's in a 25l plastic bucket with a trap. The first fermentation went well. I racked it, added sulphites (Campden tabs), added fining, left for a couple of ...
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2answers
2k views

Stuck fermentation

My beer is stuck at 1.052 and it started at 1.092. The type of yeast is wyeast #3522, so I expect it to get quite a bit lower. It's been 3 weeks since we brewed it and it's now rather clear. I suspect ...
3
votes
2answers
209 views

Stuck fermentation - how long to leave it for?

Porter, sitting at a steady 22 degrees, should be 5.2% abv, fermentation stopped at 2.5% A stir took it to 3.5% over a week. Added yeast, and nutrient, no sign of further fermentation 2 days on. ...
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3answers
8k views

Cider fermentation stopped after only 4 days. What to do?

I bought a "Magnum Apple Cider Kit" 1.7Kg kit. Added 1 Kg of corn sugar + 300 gr brown sugar and oak chips. For the first 3 days it has been fermenting like crazy. Today (4th day) the fermentation ...
3
votes
1answer
2k views

How do I un-stuck a mead's fermentation?

Some relevant facts: 18 pounds of Trader Joe's Mesquite honey, water to 5 gallons, yeast nutrient and energizer (I think it was 1 teaspoon of each, but a computer failure ate my notes). Yeast: ...
3
votes
2answers
598 views

Possible Stuck Fermentation

I'm attempting to brew a high gravity stout, OG 1088. Its been in the primary for two weeks. I assumed it had completed fermentation since it feremented extremely vigorously, so much so I had to use ...
3
votes
1answer
43 views

Altitude and Yeast

I live at 9200 feet I am on my second batch of beer. Both batches did not really chug as I call it.First batch tastes great but no carbonation Second batch yeast rose up but went flat in 1 day just ...
2
votes
4answers
114 views

First brew: dry hopped mead, probably stuck. How to best proceed?

I'm on day 9 of my first attempt at home brewing (1 gallon batch), and based on my measurements on day 5 and today it appears to be stuck at 1.010 Original Gravity was 1.065 Kind of just went gung-...
2
votes
3answers
60 views

My yeast won't ferment

I washed my fermenter out in meta bisulphate I then added a quarter teaspoon of bentonite followed by 12 litres of apple juice. My SG was 1060. I added 2lb of sugar for a stronger brew, SG then 1085. ...
2
votes
1answer
117 views

Best way to estimate remaining fermentable sugars?

This question is kind of for the chemists here, but I'm open to any ideas. In this question Denny Conn, who is far more experienced than me, asserted that a beer is likely finished fermenting, ...
2
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2answers
874 views

Specific gravity is the wrong way

I am brewing my first lager, a German Oktoberfest kit from Brewer's Best, after 12 batches of ales. I fermented in the primary for 17 days at 58 degrees and then raised the temperature to 65 degrees ...
2
votes
2answers
472 views

Can I rescue a batch that may not have had enough water at its start?

I have a high-gravity belgian ale, which after 3 weeks of fermentation is holding at 1.058--very, very sweet to the taste. Its first few days of fermentation were very active, and I fear I may not ...
2
votes
1answer
54 views

Stalled Fermentation to Bottling

I brewed an amber ale 4 weeks ago and the fermentation has stalled. The OG was 1.060, and a week and a half later the gravity was 1.037. I let it sit another week and a half and the gravity reached 1....
2
votes
1answer
53 views

Stuck or very slow fermentation on Märzen

I have made a batch of Marzen/Octoberfest. I brewed it 3 weeks ago. Starting gravity was 1.060, the beer was well airated. I have used WLP820 with 1.7L starter. It's fermenting in my fridge at 50F. It'...
2
votes
2answers
293 views

Mead Stuck Fermentation

So, I made a 5 gallon batch of mead on 10Apr2015. I used 17 lbs of pasteurized clover honey and 4 gallon of spring water (no-boil method). OG = 1.130. I used D47 Lalvin yeast (3 packs) with 1/4 tsps ...
2
votes
1answer
61 views

stuck fermentation/lowering acidity

I am having trouble getting a batch of wine off the ground. Its a three gallon batch of Lemon wine and fermentation just wont start. My SG is 1.09, temp is stable at 75, acidity is at 3.0 using those ...
2
votes
2answers
541 views

Apple cider fermentation stuck for 20+ days

I am on my second year producing apple cider at home, and was successful producing 40 liters of apple cider and perry last year, and are through primary fermenting about 40 liters this season. But my ...
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vote
5answers
316 views

Can I bottle a beer at 1.028 gravity?

I have a beer which may or may have finished fermentation. I read about "stuck fermentation" and am wondering if I ended up with not enough fermentable sugars. According to the calculator if i bottle ...
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vote
2answers
366 views

High 'finished' gravity

I pitched about a cup of decanted starter S-04 slurry into a 1.061 OG American IPA 8 days ago at 65 degrees. The gravity has been stuck at about 1.028 since pitch day + 48 hours, when the krausen ...
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vote
3answers
450 views

Sloe wine: going very slowly

Having started enough sloe gin this year to last a decade, I decided to use the rest of the fruit to brew some sloe wine. I'm new to brewing, and this might seem like an odd choice, but I have high ...
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2answers
84 views

fermentation seems to be stuck at 1065

my cider started at 1090 and seems to have stopped at 1065.i put it in a sencondary glass carboy. Do I need more time it has been about three weeks
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2answers
607 views

Stuck fermentation - Should I be concerned?

On Jan 19, I brewed what will end up being a 5 gal. batch of Nut Brown Ale. I had decent mash efficiency and ended up at 1.046 @ 68 deg. after the boil and subsequent cool. I then split the total of ...
1
vote
1answer
960 views

Day Three, still no apparent fermentation

During my most recent brew session I may have been a little too relaxed, and had a few too many homebrews during the process. I feel like I did everything right and kept everything sanitary, but ...
1
vote
2answers
61 views

Low ABV, but lots of fermentation activity

I just brewed a jalapeno ipa and am stumped as to why the abv is so low. The OG was 1.037. During the primary, the activity was very intense... like more bubbles than most other beers I've brewed. It ...
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2answers
676 views

Unsticking a secondary fermentation

Brewing a Russian Imperial (E+G version of Austin Homebrew Supply's Jester King "Black Metal" clone) stout that seems to have stalled after transferring to secondary. I've corrected the most usual ...
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vote
2answers
141 views

Is clarifying while fermenting a problem?

The all-grain saga continues. I boosted the SG to 1.070 from the OG of 1.030 with cane sugar. 10 days later, the fermentation seems to have stopped and the gravity is 1.040. As mentioned before, the ...
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vote
1answer
58 views

Must won't ferment, too sour?

I prepared a must for a mead last weekend (recipe below) and after a whole week there has been no fermentation activity. I took a pH reading and it came in at 4.4 - is it likely that the must is ...
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3answers
336 views

Temperature control during 1st phase fermentation

I am having some issues keeping the temperature controlled. I live in SE QLD and the daily ambient temperature has been 23 degrees C down to 11C. I've been advised not to let the wort drop below 18C ...
1
vote
2answers
1k views

Can I Bottle Ginger Beer after the bubbles have stopped?

I'm a ginger beer neophyte, but I love the stuff and can't find it in my area. I decided to brew and have two, three gallon glass carboys working(?) In one I used an extract, champagne yeast, sugar ...
1
vote
1answer
593 views

Stuck Fermentation on Cider?

I previously posted about a cider that kept bubbling. Since then, the cider stopped bubbling. I checked the current gravity, and wonder if I have a stuck fermentation because the specific gravity has ...
1
vote
2answers
543 views

Stuck fermentation

I brewed a 5.5 gallon batch of bells two hearted IPA and believe I have a stuck fermentation. It been 9 days since I pitched the yeast. I took a gravity reading at day 8 (1.028) and again at day 9(1....
0
votes
1answer
140 views

The runaway and the non starter!

So we got a can of Coopers German wheat beer kit, and decided to do 2x10 lites batches, trying slightly different recipes with each one. We boiled up orange zest and corriander seeds and added the ...
0
votes
1answer
84 views

I have a stalled homebrew because the temp got too high, but the must is at the right place — should I bottle?

I was using a home-made heating belt (actually, a heating pad), and I forgot and left it on overnight. The next morning, the temp was 26 degrees and the fermentation had stalled. I checked the gravity ...
0
votes
1answer
260 views

Not much activity after 24 hours

Yesterday I brewed up a batch of an american brown ale. 24 hours after pitching, it doesn't to look to be moving so well. There are hints of a krausen, but not as much as there should be. I don't see ...
0
votes
1answer
56 views

Not quite at FG with an extract batch after two and a half weeks… Safe to bottle?

It's a simple US-05 extract batch. OG was 1.063 and I'm currently on 1.016 where projected FG was 1.012. Gravity has been stable for three days. It's also absolutely delicious so I'd gladly bottle it ...
0
votes
3answers
79 views

Think my fermentation is stuck

I brewed my 5th homebrew this Saturday, an all-grain American stout. By Sunday I had very minimal bubbling. Monday there was a bit more but far less than my previous batches. Today there are none. ...
0
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2answers
3k views

First Time Airlock Won't Start

EDIT: I see from this post and from elsewhere on the Web that a bubbling airlock is apparently not an indicator for fermentation, as there could be a leaky lid. Regardless, doesn't a non-bubbling ...
0
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1answer
371 views

Troubleshooting a stuck fermentation with Ringwood Ale

I'm brewing an IPA using Wyeast 1187 (Ringwood Ale) and it seems stuck. I'm brewing 19L (5G) with an OG of 1.052 and pitched two (smacked) smackpacks of 1187 straight into the primary bucket. I used ...