Airlock sucking air back in! WTF? - Home Brew Forums
Home Brew Forums > Wine, Mead, Cider, Sake & Soda > Winemaking Forum > Airlock sucking air back in! WTF?
Cool Brewing Corny 5G & Mini Giveaway

Thread Tools
Old 01-27-2008, 11:03 PM   #1
Join Date: Dec 2007
Location: Portland
Posts: 29

My apple wine is looking really nice. I plan on bottling it a week from this Thursday (today is Sunday). I've put finings in it to help clear it out (it was really chunky unfiltered cider and was NOT clearing on its own. looks great now though).

Not only has there not been signs of fermentation but air is being sucked back into the carboy! It's very slow. Once every... oh, ten minutes or so. But still, I've never heard anyone say anything about this nor have I read anything in any books.

I'm assuming this is simply a product of the slightly warmer fermenting stage with pressure --> no fermention and slight temp fluctuations in the room = sucking air.

Is this typical?
Should something be done?
Is this yet another freak out about something that just doesn't really matter that much here on the ol' homebrewtalk forums?

I'm kind of guessing that last one is correct but thought I'd ask anyway.

Reply With Quote
Old 01-27-2008, 11:04 PM   #2
Ale's What Cures You!
Yooper's Avatar
Join Date: Jun 2006
Location: UP of Michigan, Winter Texan
Posts: 68,388
Liked 7307 Times on 5168 Posts
Likes Given: 2072

Very typical of temperature changes. It happens all the time. Just make sure it's clean water (or vodka/water) in the airlock.

Broken Leg Brewery
Giving beer a leg to stand on since 2006

Reply With Quote
Old 01-27-2008, 11:05 PM   #3
EdWort's Avatar
Join Date: Jul 2006
Location: Bee Cave, Texas
Posts: 11,871
Liked 334 Times on 168 Posts
Likes Given: 7

A change in the weather can cause suckback. Simple barometric pressure.

That's why I put vodka in my airlocks.

Reply With Quote
Old 01-27-2008, 11:55 PM   #4
Join Date: Dec 2007
Location: Portland
Posts: 29

Ok, I figgered...

I've got some good old H.R.D. vodka in there so no prob.


Reply With Quote

Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Airlock sucking back in penged Fermentation & Yeast 2 09-21-2009 05:38 AM
Yummy, sucking back my FIRST draft pour JoeMama Bottling/Kegging 1 02-14-2009 10:36 PM
Sucking back a Hobgoblin - Now I know... JoeMama General Beer Discussion 6 01-05-2009 02:35 AM
airlock Suck back RodfatherX Beginners Beer Brewing Forum 12 06-06-2008 03:34 AM
Airlock sucking air in? DuPuma General Techniques 3 01-31-2008 11:14 PM

Forum Jump