• Please visit and share your knowledge at our sister communities:
  • If you have not, please join our official Homebrewing Facebook Group!

    Homebrewing Facebook Group

Fermentation overflow

Homebrew Talk

Help Support Homebrew Talk:

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

1710trout

New Member
Joined
Dec 14, 2015
Messages
2
Reaction score
0
This will be my first Belgian Strong Ale. I pitched the yeast last night and when I got up this morning there was some activity. Came home for lunch and the fermentation cap blew off with a lot of foam coming out the top. I couldn't get to the supply store until this evening to purchase a cap and overflow tube. When I got home it stopped foaming out of the carboy but fermentation activity is still strong. My question is, is there a good possibility that the batch has become contaminated with out a cap on for most of today?

Thanks!

Jason
 
Probably not. the fermentation produces CO2. If it was vigorous enough to blow your cap off and it was still fermenting a lot (which sounds like it obviously was) then it A. created enough of a blanket of CO2 to protect your beer, and B. was probably blowing it out the top. Just get a blow off on there soon before it slows down.

Obviously its not an ideal situation, but chances are, youre fine.

Edit: Welcome to the forums by the way!
 
For future, a blow-off tube is preferable to an airlock for high-grav beers and wheats. How many gals is your batch and fermenter? You can start with a blow-off and after a few days, switch to an airlock if you want. Agree with kev211, this should be no problem. If you do switch out b-o/airlock, obviously, be sure to re-sanitize. Let us know how it turns out.
 
I would say you are probably safe, CO2 blowing off and lots of active yeast will overtake anything trying to get in there. I use blow off tubes on everything at the start of ferment.
 
Probably not. the fermentation produces CO2. If it was vigorous enough to blow your cap off and it was still fermenting a lot (which sounds like it obviously was) then it A. created enough of a blanket of CO2 to protect your beer, and B. was probably blowing it out the top. Just get a blow off on there soon before it slows down.

Obviously its not an ideal situation, but chances are, youre fine.

Edit: Welcome to the forums by the way!


^I'd have to agree that's why u put the sanitizer/water in the airlock if you look the airlock has holes for it to release the co2
 
U will be ok airlock has little holes in the cap anyways for release of co2 I had that problem a few weeks ago and ended up getting a 6.5 gallon carboy and it works great no overflow problems
 
Thanks everyone for the info! I place a cap with overflow tube. I'll let you know how it turns out.
 
I rigged a section of 3/8" tubing with the stem I cut off an old airlock inserted in one end. This'll fit the airlock grommet. Then the other end into a half gallon cheapy vodka jug 1/3 full of water & Starsan mix. Kinda magnifies the bloop-bloop like Cavofonic sound...
 

Latest posts

Back
Top