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

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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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3answers
131 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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1answer
252 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 ...
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1answer
44 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
209 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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3answers
162 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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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 ...
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1answer
43 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 ...
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2answers
380 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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1answer
692 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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2answers
213 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 ...
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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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67 views

What do I risk for leaving my beer exposed to open air through the airlock hole?

I brew away from home, and last weekend I has to rush away before I was completely racking from primary to secondary. I can only go back in about 10 days. As a result, my beer is now sitting in a ...
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3answers
68 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 ...
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1answer
47 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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1answer
59 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
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 ?
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20 views

Prolonged loss of air lock

I have a Shiraz that had completed fermentation and clarification and was being stored in a carboy until I had time to bottle. Apparently, the air lock was knocked off and it was sitting open (with a ...
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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 ...