Questions tagged [airlock]

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

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14
votes
6answers
13k 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 ...
12
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5answers
13k views

Homemade airlock

I recently moved to a place that doesn't allow brewing equipment to be imported (But it is legal to brew... don't ask me). I've built a lot of my stuff, but I have a question about airlocks. I've come ...
11
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5answers
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No bubbles in the airlock - should I still bottle the brew?

I'm attempting my first brew using a kit with all the provided ingredients (it's a lager). My brew is still in the big tub and has been there for about 2 weeks now. Initial SG was 1.040 and it's now ...
10
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9answers
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Airlock Alternatives

Imagine that brew-day rolls around and you find yourself without an airlock for your carboy or bucket. What other things can you use in it's stead? Further imagine that you do not have the ...
10
votes
6answers
6k views

Why do my airlocks lose liquid?

This has happened with a few batches now. My three-piece airlocks are drained of the sani inside them repeatedly. Even after a few days, when fermentation doesn't seem as rapid (and therefore the ...
10
votes
2answers
9k views

Will it harm my wine to shake the container?

This is probably a really dumb question, but is it bad to shake or swirl the container my wine is in to encourage the release of CO2? I accidentally found out that jarring the container results in ...
9
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4answers
7k views

Using StarSan in Airlock

Just getting started on home brewing and I used boiled water in my airlock. I've seen that some places recommend using sanitizer as the airlock "fill". Is it ok to use straight up StarSan in there or ...
9
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5answers
57k 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). ...
8
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4answers
2k views

Starsan in double bubble airlock keeps getting sucked into fermenter - why and how to prevent?

I did a brew on Saturday and cooled, got in the fermenting bucket and added yeast, added starsan to the chamber in the double bubble airlock and got it under the stairs. Ever since then, the starsan ...
6
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3answers
5k 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 ...
6
votes
1answer
4k 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 ...
6
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3answers
3k views

Krausen During Primary

I'm wondering what other peoples' experiences are with krausen at the start of fermentation. I've had some beers that have bubbled along happily without producing huge amounts of foam, and others ...
6
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1answer
137 views

Air burst when pouring from Keg

I'm running taprite dual regulator on 10lb bottle. Ever since I taped a 58l beside my 20l keg, I get CO2 bubbles in my beer line which creates an air burst every time I pour a beer. Is it possible my ...
5
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2answers
7k 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) ...
5
votes
1answer
2k views

Beer blew up into the airlock. What's next?

So it happened again. The beer blew out the airlock leaving a water and beer mix behind. The airlock still bubbles as per usual. Now I'm wondering what I should do next. Leave it as is Replace the ...
5
votes
2answers
5k views

What do I do about beer coming out my airlock?

Brewed a Northern Brown extract kit on Saturday, hit the target OG. Pitched yeast a little cold (63F), but activity was in full swing by yesterday morning. Woke up this morning (Monday) to find that ...
5
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2answers
94 views

Having doubts about my first stout

I just had an issue with an oatmeal stout. I'm just starting to brew beer at home (BIAB) and I think I made some mistakes. I had my water at 80°C hoping for the decrease of temperature to 72°C when ...
5
votes
3answers
542 views

Airlock sucking inward

I've made three demijohns of elderflower wine, and after fermentation stopped and I racked the wine, then all three demijohns started sucking in the liquid which is in the airlock. We have had some ...
4
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5answers
3k 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?
4
votes
3answers
273 views

What do you do with the vodka from your ferm locks?

I would've thought the answer was obvious, seeing as how it's alcohol. But I took a whiff, and it smells like fermentation. Now I like fermentation, it means beer is on its way. I don't like ...
4
votes
2answers
1k 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
votes
2answers
548 views

Did I Break My Airlock?

I don't really know what I did here. I cut off the bottom little cross guy on the stem of the airlock because it was getting clogged up during vigorous fermentations. Now the middle piece just kind of ...
4
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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. ...
4
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3answers
151 views

Contamination from airlock

Long story short...I didn't have Vodka so had to use distilled water in the airlock. Life got in the way and over a week later I finally got back to the beer today. Fermentation has completed but the ...
4
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2answers
145 views

Has your airlock ever shot out of your carboy?

I made a kettle sour and added guava in secondary. Everything was going well for a week. I went out of town for the weekend and noticed my carboy stopper and airlock about three feet away on the floor....
4
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3answers
5k 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 I've realized that water was probably sucked into my brew ...
4
votes
1answer
1k 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 ...
4
votes
4answers
2k 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 ...
4
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1answer
3k 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 ...
4
votes
1answer
2k 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 ...
3
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5answers
25k 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. ...
3
votes
3answers
264 views

White sediment inside my airlock

I tried to find something about this topic; no luck. So here's my question. Beside the fact that my beer went crasy and took control of my airlock liquid ahah, could you tell me what is that white ...
3
votes
4answers
13k 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 ...
3
votes
5answers
3k 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
votes
3answers
159 views

Airlock won't stay in carboy

This airlock won't stay in my 5-gal glass carboy. https://morewinemaking.com/products/universal-stopper-hole.html I've tried drying out the bung hole and also the bung outer edge, but it still ...
3
votes
1answer
342 views

Airlock has a bug inside

My airlock today has a bug inside, I think it must have crawled in and died from an overdose of cheap Gin. Anyway, I was wondering, should I wait to clean out the airlock until I move to secondary or ...
3
votes
1answer
183 views

Worried about oxidation

I'm brewing my second batch and had a bit of an accident yesterday. I brewed 20l two days ago and when I checked my fermenter (bucket) yesterday it had overflown. I don't know what possessed me to ...
3
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5answers
1k 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 ...
3
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2answers
4k 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 ...
3
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2answers
698 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 ...
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 ...
3
votes
2answers
734 views

Stuck Kvass fermentation?

So I was making kvass, and have decided to make it a little more alcoholic. I made it using the following recipe: Slightly burn 3 pieces of toast, add to boiled water, and 1.5 handfulls of raisins. ...
3
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2answers
758 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 ...
2
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4answers
2k views

Airlock gasket on primary fermenter fell in when reinserting airlock

I was checking the gravity on my fermenting beer and took the top off my bucket to do so. When reattaching the airlock, the black rubber gasket on the bucket fell in. I tried to fish it out with a ...
2
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2answers
349 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 ...
2
votes
3answers
867 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 ...
2
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2answers
64 views

Airlock Blow now no bubbles

Hi i am doing my first home brew. after less than 24 hours the beer was coming through the water in the air lock. i looked online and it said to change the airlock and put it back on i did this ...
2
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3answers
444 views

I forgot to put liquid in my airlock!

Without liquid in the 3 way airlock, is my brew now ruined?
2
votes
1answer
77 views

Will this home-made airlock work?

This is a makedo airlock; I couldn't make it shorter as the loop bends itself and air couldn't pass through. https://imgur.com/gallery/TOA6i7f
2
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2answers
2k views

homemade wine problem

My question is in my primary fermenter. If the airlock is not bubbling does that mean its not fermenting. I have two on the go one is bubbling and the other one is. What should I do?