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
690 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
2k 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 ...
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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
3k 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
3k 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
558 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 ...
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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 ...
3
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3answers
143 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 ...
3
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2answers
1k 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 ...
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2answers
156 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. ...
3
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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
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2answers
569 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 ...
2
votes
1answer
74 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, ...
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2answers
714 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
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2answers
390 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
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1answer
30 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. ...
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2answers
91 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
54 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
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2answers
242 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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3answers
6k 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 ...
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3answers
402 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
75 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
345 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 ...
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1answer
826 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 ...
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2answers
438 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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2answers
139 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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1answer
28 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
310 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 ...
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2answers
553 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 ...
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1answer
455 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 ...
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2answers
475 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 ...
0
votes
1answer
127 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
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2answers
334 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 ...
0
votes
1answer
43 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
235 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
3answers
43 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
2k 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
337 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 ...
0
votes
1answer
160 views

Re fermentation

I have 2, 6 gallon carboys, one apple & the other peach. The apple is bubbling really good, the peach not at all from what I have seen. Can/should I add more yeast or sugar to kick start it?
0
votes
2answers
510 views

Brew from an out of date kit - not fermented

I kicked off a wildly out of date (2008) brew from a kit a few weeks ago. ( One of those kits with a packet of yeast and 2 large tins of goop.) The brewing didnt go as well as I've had them go ...
0
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1answer
160 views

Is my fermentation on the right track?

I upgraded my equipment and estimated my new efficiency a bit too low, so the imperial IPA that I brewed on 11/30 ended up having an O.G. of 1.10 (supposed to be 1.09). I made a two step starter with ...