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

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2
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2answers
68 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. ...
2
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5answers
50 views

Minimal airlock activity

So I've just finished my 3rd all grain brew yesterday, first time trying a stout. After 24 hours, I'm only getting ~4 bubbles per minute on the airlock. Last night about 8 hours after pitching the ...
0
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1answer
38 views

Airlock was removed from wine carboy - is it still ok?

So we had our basement flood last month and the company that came in to do the repairs moved my wine (6 gallons each of blueberry and apple) and at some point between now and then someone thought it ...
4
votes
3answers
384 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 ...
7
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6answers
7k views

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 ...
4
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5answers
26k 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). ...
0
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3answers
65 views

Oxygen in beer due to airlock

I just noticed that my airlock opened up within the past day and I was wondering if it is ok to bottle still today? It has been fermenting for past 2 weeks which is supposed to be enough but I am not ...
3
votes
1answer
62 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 ...
9
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2answers
4k 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 ...
10
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5answers
6k 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 ...
2
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2answers
62 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 ...
0
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1answer
43 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. ...
3
votes
2answers
77 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 ...
0
votes
1answer
58 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 ...
1
vote
1answer
42 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 ...
1
vote
3answers
321 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 ...
1
vote
3answers
151 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 ...
3
votes
5answers
668 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?
2
votes
2answers
86 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 ...
1
vote
3answers
205 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. ...
1
vote
4answers
7k 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 ...
8
votes
4answers
4k 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 ...
1
vote
1answer
130 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 ...
1
vote
3answers
157 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 ...
1
vote
2answers
481 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 ...
0
votes
2answers
102 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 ...
0
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1answer
70 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 ?
1
vote
6answers
704 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, ...
4
votes
1answer
590 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 ...
2
votes
5answers
339 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
votes
1answer
63 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 ...
1
vote
3answers
124 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 ...
2
votes
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
votes
1answer
657 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 ...
1
vote
1answer
589 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 ...
0
votes
2answers
372 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 ...
0
votes
2answers
207 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
votes
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 ...
2
votes
2answers
268 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
2answers
904 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 ...
1
vote
1answer
299 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
votes
3answers
378 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 ...
1
vote
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 ...
1
vote
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 ...
1
vote
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 ...
0
votes
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 ...
3
votes
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 ...
1
vote
1answer
574 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 ...
1
vote
1answer
250 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
votes
1answer
811 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 ...