Skip to main content
10 votes
Accepted

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

Just clean it up and replace the airlock sanitizer fluid. If you have a second airlock just prep it and swap. If not just cover with sanitized foil while cleaning.
Evil Zymurgist's user avatar
8 votes

White sediment inside my airlock

Looks just like yeast to me. If foam rushed into your airlock, this is really probable. Sugars are dissolved and you won't see them as a layer. I would replace the airlock with clean one - that way, ...
Mołot's user avatar
  • 3,718
8 votes

Having doubts about my first stout

At what temperature did you eventually mashed? Not sure how it works out with BIAB, but adding grains to a regular mash (even less volume compared to BIAB), the temperature only drops a few °C's. My ...
JesseB1234's user avatar
7 votes

Put the airlock really high could avoid blowing?

If fermenting in a corney keg you will never yield 5 gallons of finished beer. If 5 gallons finished beer is the goal use 6-6.5 carboys and brew 5.5-6 gallons of beer. Primary yeast cake easily ...
Evil Zymurgist's user avatar
7 votes
Accepted

Airlock has a bug inside

Generally speaking it is safer to remove, clean/sterilise and replace the airlock. It should only take 30 seconds and the vent hole can be covered with an inverted glass to prevent any accidental ...
barking.pete's user avatar
  • 5,631
7 votes
Accepted

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

This is caused by a drop in temp before co2 is being produced. Just cap the fermenter in sanitized foil until you're past the lag phase, or cooled to fermentaion temp. Though a little bit of starsan ...
Evil Zymurgist's user avatar
5 votes

Will this home-made airlock work?

It will probably be OK. The smaller the bore of the tube, the greater the tendency will be for any bubbles to push the liquid right out. You could just make a blow-off instead by submerging the ...
David Liam Clayton's user avatar
5 votes

Airlock Blow now no bubbles

If you were getting beer/yeast coming out of your airlock, it seems safe to say your beer was fermenting, perhaps quite vigorously. It's not uncommon for a beer to ferment completely within a few days,...
Nate Parsons's user avatar
5 votes

Has your airlock ever shot out of your carboy?

It usually happens with strong fermentation when the krausen clogs the airlock, it is then ejected with the pressure. If the fermentation was still active when you returned, the beer might not be ...
Philippe's user avatar
  • 4,806
4 votes

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

No way to really know. For sure it will be more oxidized. It will be a flaw in taste, but no one can know how big one. Real danger is with flood. Flood promotes mold, and other bad microorganisms. ...
Mołot's user avatar
  • 3,718
4 votes
Accepted

Contamination from airlock

I think the likelihood of a batch getting contaminated this way is pretty low. Certainly be careful with cleaning and replacing the airlock. But generally speaking the airlock serves as a blocker ...
thesquaregroot's user avatar
  • 1,900
4 votes

Airlock won't stay in carboy

I use this style. I press them all the way down to the lip. Wet or dry they stay put. Take a little work and patience to get out though.
Evil Zymurgist's user avatar
3 votes

Airlock sucking inward

I use vodka in my airlocks if sucking in starts to occur. Freeze distilled stuff should do the trick. To actually get on and answer your questions: Is my wine likely to be ruined? Probably not Is ...
Mr_road's user avatar
  • 7,048
3 votes
Accepted

Elderberry wine making: Is wine entering the bubbler airlock usual?

My instant advice is to take the bung out of the demi-john, pour out enough liquid to leave at least 2 inches (or more) above the liquid. Flush/clean the bubble trap and refill as before, then fit ...
barking.pete's user avatar
  • 5,631
3 votes

White sediment inside my airlock

Ditto, most likely yeast. Try and use a "blow off tube" next time as the krausen is forming, usually during the first few days after the start of fermentation.... depending on fermentation temp, type ...
Erick Cremer's user avatar
3 votes

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

You're putting too much liquid in the bubbles of the airlock. If each side is only filled about one-third, none of the liquid will either be sucked out or blown out. The fluid in a properly-filled ...
Jeff Roe's user avatar
  • 2,829
3 votes

Fermentation issues

What makes you think that something went wrong? It is normal for the fermentation to slow down, specially if you are close to your final gravity. The speed of fermentation can vary for several ...
Philippe's user avatar
  • 4,806
3 votes

Airlock required for lagering or conditioning?

You used the term "lagering", so if you are truly lagering, the answer is 'it depends'. If your beer is indeed a lager, then your yeast WILL be active....potentially down to freezing temperatures (if ...
Jim Spaulding's user avatar
3 votes

Airlock sucking inward

Depending on how much head space, just a few degrees drop will pull air through the air lock into the fermentor. Also that means that fermentation was no longer producing c02. It sounds like you ...
Evil Zymurgist's user avatar
3 votes

I forgot to put liquid in my airlock!

at the beginning, co2 production should push air out through the airlock. So, it probably depends on how long it was left that way
Ken Dere's user avatar
3 votes

I forgot to put liquid in my airlock!

It's almost certainly fine. As Ken points out, CO2 production pushes air out of the airlock, particularly at the beginning. The headspace in your fermentation vessel is predominantly CO2, so ...
tempest_col's user avatar
3 votes

Starsan- overly ambitious krausen in airlock

It's prolly normal and I doupt this foam comes from starsan. I get bigger reaction when my fermentation temperature is high and/or OG is high and/or yeast produce big krausen
Boubou's user avatar
  • 260
3 votes
Accepted

No airlock movement but I can see bubbling in the mead

Probably primary fermentation is complete. Leave it for another week. It could also be things like fermentation has slowed, because the ambient temperature has dropped, and it is not complete. Or a ...
Kingsley's user avatar
  • 2,060
2 votes

Minimal airlock activity

Airlock activity is not the be-all end-all. You could have a bad seal on a bucket or on the airlock grommet itself. Give it a little time (3-4 days) then check the gravity. Gravity movement is really ...
Ell's user avatar
  • 1,035
2 votes
Accepted

Does distilled water and/or alcohol cause airlocks not to bubble?

To elaborate on my comment more. Some airlocks won't show tale tale signs of c02 that has already escaped if using a solution in them that won't form bubbles on their surface like pure water or ...
Evil Zymurgist's user avatar
2 votes

I've had my home brew sitting at 19c for 4 days now but there are no bubbles

Take a gravity reading. Write down the gravity. Is it already in a reasonable range for a finished beer? Anything of 1.014 or lower should be fine. Did you take a reading of the Original Gravity (OG)?...
Robert's user avatar
  • 1,266
2 votes

Contamination from airlock

I stopped using vodka or sanitizer in the airlock 19 years and nearly 500 batches ago. No problem.
Denny Conn's user avatar
  • 33.4k
2 votes

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

One sensible suggestion is don't put starsan in the bubble trap - just put water in there. There is no need to use an antiseptic in the air lock.
barking.pete's user avatar
  • 5,631
2 votes
Accepted

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

Your biggest problem is probably bugs; fruit flies, flies, cockroaches, etc. If possible, get someone to cover the beer and protect it from critters. Cling wrap and an elastic should be enough. Yes, ...
Atron Seige's user avatar
  • 2,466
2 votes

Airlock sucking inward

I used to use K-meta in my airlocks without any problems, until I had it get sucked into and ruin a batch of beer. Now, nothing but vodka in my airlocks. If it gets sucked in it just raises my ABV a ...
Tony's user avatar
  • 502

Only top scored, non community-wiki answers of a minimum length are eligible