A device used to prevent back flow of external air into the fermentor.

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1answer
22 views

Lager Diacetyl Rest and Lagering Without Air Escape

I've fermented a 5 gallon lager at 45 F for 2 weeks. The OG 1.050 and FG 1.012. At this point, I racked to secondary and put back in the airlock & bung. Increasing temperature to 65 F for 2 days. ...
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2answers
45 views

Is my wine safe to drink?

I began making a few gallons of mango wine a few months back, and it was fermenting very well. I got all of the fruit and debris out a week or so after I started it, but I kept it fermenting in the ...
3
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2answers
56 views

Suckback and sampling from conical fermenters

How do people with conical (or other sealed) fermenters avoid sucking liquid from the airlock into the vessel when they take samples or remove trub through the bottom valve? Do they just remove a ...
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1answer
53 views

Why is my pre yeast pitch lager bubbling in the fridge?

I have been placing my lager wort in the fridge overnight to get down to my desired pitch temp. This time I opened the fridge to see my airlock bubbling... I understand about possibility of ...
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1answer
40 views

Wine time frame?

I set a 1gallon shiraz kit going this afternoon, this is my first wine. I have sealed the demijon with a bung and put an airlock in. After 4 hours, I have yet to see a single bubble come through the ...
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3answers
317 views

How bad can this be?

So i got everything in my fermenting vessel last night and i got up this morning to find that the siphon lock was pushed in. I tried to slowly pull it back up through it's opening but the siphon ...
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3answers
133 views

Why bother with airlock when I can just leave the tube going to the bleach water in place?

Making my first batch! Using a Brooklyn Brew Shop kit, and did the active part last night. I've got the jug in a cool/dark place and it it bubbling away, sending CO2 through the tube in the top of ...
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2answers
71 views

Fermenting bin lid bulging

First time brewing a batch of ale and slightly concerned by a potential explosion! Just walked past the fermenting bin and saw the lid is bulging out slightly, at a guess I'd say the gas isn't ...
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3answers
169 views

Fast Fermentation - Should I be worried?

Just did my first batch using the fast ferment conical fermenter. Brewed an extract kit from Northern Brewer....their Smashing Pumpkin Ale. It's a 1.054 OG brew and I used a dry yeast to ferment. ...
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1answer
118 views

is it normal for vigorous bubbling in airlock right away?

I made a 5 gallon batch of sweet mead last night and when I woke up I heard it bubbling away like crazy! Is this normal if I'm using the s style airlock? First time using this type. It's been bubbling ...
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2answers
379 views

My airlock keeps becoming empty on one side, is that normal?

This is my first time brewing and I only started yesterday, so I'm still very much a novice. I have a bubbler airlock on my 33 litre fermenting bucket, like the one in this image: I filled it up ...
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3answers
141 views

Filtering air intake during cold crash

I'm thinking of cold crashing my current brew, but I am not comfortable with the idea of allowing sanitizer to be sucked in, and I'm not happy with foil I have heard that maybe there are micro foam ...
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1answer
67 views

I have a problem with my Airlock

The lid on my airlock has no holes in the top! Do I still make sure the lid is firmly all the way down ?
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3answers
294 views

Water level low on airlock. Is it contaminated?

About 48 hours into my ferment I noticed a significant amount of liquid (about an inch) is missing from my airlock. Reading up on the subject ive realized that water was probably sucked into my brew ...
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5answers
575 views

Do alcohol vapor escape through the fermentation / air lock?

Something I've always been paranoid about is if the alcohol escapes through the airlock if I leave the liquid as-is for weeks after the fermentation have stopped. Will I lose alcohol level?
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2answers
96 views

Airlock not pressurized, any explanation other than a leak?

I'm in the primary fermentation of mead, using one of these "big mouth bubbler" 5 gallon fermenters and an S airlock. Initially, when the fermentation was really vigorous, the airlock behaved as ...
4
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1answer
483 views

Airlock not bubbling

So I made my first ever homebrew ale yesterday, transferred it to my fermentation bin and pitched the yeast. After 24 hours at the recommended temperature there is a nice thick layer of krausen on ...
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5answers
298 views

Airlocks and long term unsupervised fermentation

I would like to start leaving beer and mead in secondary at a location that I may not be able to get to on a regular basis (sometimes not for several weeks) and have a few questions for anyone who ...
2
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1answer
59 views

Airlock and Stopper Rocket

Brewed up a batch of wort yesterday and it all went well. Good sanitation, quick cool down, and yeast activated. Set up the carboy in a controlled temp room (74) and fermentation started within 4 ...
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3answers
104 views

Mold in S-Shaped Airlock

I'm new to homebrewing, and I've recently encountered a problem with an s-shaped airlock. I clean it out with water after use, but it takes forever to dry on its own. This time, it's started growing ...
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4answers
3k views

I forgot to put water in the airlock! What do I do now?

I did my first brew (all grain), some things were complicated to achieve and finished at 4 o'clock in the morning because I decided to start at 10 pm (big mistake). At the end of it all, after I ...
0
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1answer
543 views

Should I pitch a second round of yeast?

I brewed a Dogfish Punkn clone that was rather heavy on the sediment. I pitched a pretty healthy yeast starter that was working for 30 hours before being pitched probably around 80 degrees, perhaps ...
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1answer
519 views

Airlock started bubbling after racking into secondary and dryhopping, why?

I racked my IPA into a sanitized carboy onto the hops I'm using for dry hopping, the airlock had been still for about 2 day before the racking. But now its in the secondary the airlock started up ...
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2answers
342 views

Overflowing Airlock and Contamination

I use a Raspberry Pi with water-proof temperature probes to monitor the temperature of my fermenting wort, and I feed the probe through the airlock to make direct contact with the wort. Two out of my ...
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2answers
182 views

Bubbles restart after 1 month?

i've done 4 batches one month ago, one per day, day after day. My batches now are of 60L, and I use 2 30L fermenters for each batch. 2 of the 4 batches are the "same recipe", so I have 4 fermenters ...
4
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1answer
1k views

Why is counting airlock bubbles a poor method of determining whether or not fermentation has slowed down or stopped?

I am eager to figure out how to measure the specific gravity of my wort using a Raspberry Pi, Arduino, or other device, but I do not wish to spend $250 for a BeerBug. People on the internet have used ...
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2answers
253 views

What are the Consequences of Removing an Airlock for less than 60 seconds?

I have to remove my airlock to get a temperature probe out of the carboy. I can probably do this in 15-30 seconds. I understand that air shouldn't touch the alcohol, but will this short of a time ...
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4answers
6k views

filling the airlock

I'm brewing my first batch ever, and got a little worried that it wasn't bubbling after 24 hours as the instructions said it should. I've read a lot on here that says not to worry about a bubbling ...
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1answer
280 views

Inward pressure when fermenting cider

I am making a cider using 1.5L apple juice, 1 cup sugar and Saflager s-23 Dry larger yeast. I was using a balloon with a pin hole as the "air lock" on this as all my air locks were being used. It ...
2
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3answers
349 views

Lost my grommet in the fermenter - what to do?

Brewed a nice RyePA last weekend and I just opened the fermentation chamber to find the airlock not bubbling. A quick peek at the wort confirmed a nice krausen in place. I pulled the airlock and ...
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1answer
5k views

How to tell if a cider is finished without hydrometer

EDITED I have a cider that I have made following the steps on CraigTube for his Hard Apple Cider. The only difference is that I have used Champagne yeast and the batch is 22L. I know you are all ...
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4answers
2k views

How far to insert stopper in carboy?

For my last 1 gallon batch, I decided to avoid my common problem of overflowing my airlock, by using a proper blow-off. So I bought myself a stopper, hose, and double-sided barb from my LHBS. I ...
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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 ...
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2answers
2k views

Murky beer, no bubbles in airlock?

we are fairly new to brewing and are attempting to make a Raspberry Tart Ale (based on a wheat DME). The beer has been in the carboy for 8 days now and is very, very murky and there aren't any bubbles ...
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4answers
23k views

How do I avoid airlock foam overflow? Does it affect the fermentation process?

During my last small batch brew, American Wheat from Northern Brewer, I came home to find that the foam in the 1 gallon carboy had overflowed the three-piece air lock (which was a mess to clean out). ...
1
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1answer
550 views

Why did my airlock overflow?

Why did this happen? Is this bad? Aside from wasting beer, it seems to me that this would invite infection? If it means anything, I smelled the airlock and it seemed mostly vinegar, but tasting the ...
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6answers
637 views

Which is the superior air-lock liquid: Vodka or Star-San?

I've had a life-long fancy for using vodka to clean sanitize and naturally use it in my air-lock. Given that it is only 40%, however, and I live in California where pure grain alcohol is illegal, ...
1
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1answer
238 views

How to Sterilize Bung and Hole while Maintaining a Strong Seal?

How do you sanitize and prepare a bung for stopping a carboy? While making sure that it will maintain a good seal and not POP off sometime later. In depth I removed and sterilized my bung and ...
3
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1answer
759 views

Fruit Flies in Airlock. How can I Test if Mead is Okay?

In short After approximately 5.5 month my airlock full of vodka has lost 60% of its volume and now has trapped a couple dozen of fruit flies. Should I be concerned for my batch of Mead? What methods ...
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4answers
3k views

Airlock: vodka, water, or

I've just started making my first brew, and am using vodka in the airlock, but am hoping for some more detailed info about what is best practice, or if there is not really any difference between using ...
4
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1answer
1k views

airlock ran dry, should I be concerned?

I'm very new to this all, and just bought a noob-starter-kit. I'm using a can for my first brew (to learn the basics) So I just started the brew (Coopers Real Ale) a few days ago. I'm keeping the ...
3
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2answers
807 views

Best way to clean an airlock

I recently did two ale brews in two separate fermenters and in both cases my airlocks got sediment in them, which then dried in. I can't find a way to clean out these airlocks, as I can't get around ...
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5answers
10k views

Can I bottle when still bubbling a little?

I made a beer from extract (amber dryed malt extract). Recipe says OG is 1.040 FG is 1.010. Used Safebrew S-04 (english ale yeast). The wort has been sitting in primary fermenter for 10 days now. ...
2
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2answers
858 views

3 Piece Airlock without Liquid

I was talking with a fellow brewer who has been brewing for many years and found out that he does not put any liquid in his 3 piece airlocks. He claims that next to nothing can get in even without the ...
4
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4answers
916 views

handling shrinkage from crash cooling

I just crashed 5 gallons of German Pilsner for lagering and I noticed that my airlock starsan level was significantly lower after cooling. I presume this is due to the liquid (beer) shrinking after a ...
5
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2answers
1k views

Airlock required for lagering or conditioning?

If I put some beer in a secondary vessel for medium-term condition (e.g. lagering or dry hopping), do I need to put an airlock on it or can I just close it up with a stopper or put it in a keg and ...
3
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3answers
2k views

Airlock re-sanitization after minor blow-off

I had some minor blow-off enter (and exit) my airlock during the most active part of fermentation. The krausen has since gone down significantly, and there is no worry of the airlock getting clogged. ...
3
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5answers
1k views

after fermentation (carboy) if I put it in the fridge what do with the air-lock?

listening to an interview with John Palmer he suggests putting the fermentation vessel in the fridge (after fermentation is complete) to drop out some left over trub and yeast. I figured I would give ...
3
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3answers
3k views

Is it normal for one side of a two-piece (s-shaped) airlock to be empty during fermentation?

I have always used either a blowoff tube or a three-piece airlock (one with the small, floating cap on the exhaust tube) for fermentation. Today's batch is my first using the two-piece (S-shaped) ...
3
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3answers
2k views

Forgot 1 piece to a 3 piece airlock, is this recoverable?

Last weekend I brewed my first batch of beer. I ordered the kit back in April because there was a Groupon and stuck the yeast in the fridge until I needed it. Its been a week and I haven't seen any ...