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Not all yeast perform the same. But if you are using the same strain as before but it isn't performing the same then it could be:
Age of yeast.
Temperature pitched.
Temp during fermentation.
Yes.
I don't believe the airlock diameter will reduce the mount of gas released. Note: The 3-piece airlock has a small cross guard at it's bottom and has been known to clog from kräusen. You may consider drilling through it.
The head room in volume between a 6.5 gallon carboy and a 6.5 gallon bucket is the same.
Always.
Always.
Probably not.
Yep.
The amount of pressure won't be different, but I find the 3 piece airlock creates larger bubbles, which equates to less frequent bubbling.
Nailed it!
3 Piece vs. S-Bubble Airlocks
5 posts • Page 1 of 1
3 Piece vs. S-Bubble Airlocks
Okay, I made some fermentation changes based on some good info provided here in the Brewers Roundtable forum. First, I now have better fermentation temperature with my converted cube cooler. Second, I am doing my primary in a 6.5 glass carboy instead of a plastic bucket.
I am even using a 3 piece airlock instead of my S-bubble type. However, I have noticed that the bubbling is not as intense and frequent as when I used the S-bubble. It is putting along though.
Could it be that this packet of liquid yeast is not working as well? The recipe did call for a starter, but I didn't think it was all that necessary with a 5% abv (O.G. 1.056, target F.G. 1.015).
Do I recall reading somewhere that fermenting slows a little as temps drop?
Or maybe it is the diameter of the airlock tube being bigger and less pressure/less bubbling being produced?
And what about the possibility of more head room in the 6.5 gal carboy versus the bucket (less pressure too)?
Would it be a good idea to test my final gravity before bottling?
Or maybe I should just relax a little bit?
I am even using a 3 piece airlock instead of my S-bubble type. However, I have noticed that the bubbling is not as intense and frequent as when I used the S-bubble. It is putting along though.
Could it be that this packet of liquid yeast is not working as well? The recipe did call for a starter, but I didn't think it was all that necessary with a 5% abv (O.G. 1.056, target F.G. 1.015).
Do I recall reading somewhere that fermenting slows a little as temps drop?
Or maybe it is the diameter of the airlock tube being bigger and less pressure/less bubbling being produced?
And what about the possibility of more head room in the 6.5 gal carboy versus the bucket (less pressure too)?
Would it be a good idea to test my final gravity before bottling?
Or maybe I should just relax a little bit?
Primary: Belgian Saison
Secondary: Dry Stout, Tepache, Berliner Weisse
Bottled: Old Ale, Oak Aged Old Ale
On Tap: Dopplebock, Apple/Cherry Cider, American Pale Ale
Coming Soon: Cascadian Dark Ale, Mead
Secondary: Dry Stout, Tepache, Berliner Weisse
Bottled: Old Ale, Oak Aged Old Ale
On Tap: Dopplebock, Apple/Cherry Cider, American Pale Ale
Coming Soon: Cascadian Dark Ale, Mead
-

miguelito - Brewing Master
- Posts: 119
- Joined: Sun Jun 07, 2009 10:44 pm
- Location: Tampa, FL
Re: 3 Piece vs. S-Bubble Airlocks
miguelito wrote:Okay, I made some fermentation changes based on some good info provided here in the Brewers Roundtable forum. First, I now have better fermentation temperature with my converted cube cooler. Second, I am doing my primary in a 6.5 glass carboy instead of a plastic bucket.
I am even using a 3 piece airlock instead of my S-bubble type. However, I have noticed that the bubbling is not as intense and frequent as when I used the S-bubble. It is putting along though.
Could it be that this packet of liquid yeast is not working as well? The recipe did call for a starter, but I didn't think it was all that necessary with a 5% abv (O.G. 1.056, target F.G. 1.015).
Not all yeast perform the same. But if you are using the same strain as before but it isn't performing the same then it could be:
Age of yeast.
Temperature pitched.
Temp during fermentation.
miguelito wrote:Do I recall reading somewhere that fermenting slows a little as temps drop?
Yes.
miguelito wrote:Or maybe it is the diameter of the airlock tube being bigger and less pressure/less bubbling being produced?
I don't believe the airlock diameter will reduce the mount of gas released. Note: The 3-piece airlock has a small cross guard at it's bottom and has been known to clog from kräusen. You may consider drilling through it.
miguelito wrote:And what about the possibility of more head room in the 6.5 gal carboy versus the bucket (less pressure too)?
The head room in volume between a 6.5 gallon carboy and a 6.5 gallon bucket is the same.
miguelito wrote:Would it be a good idea to test my final gravity before bottling?
Always.
miguelito wrote:Or maybe I should just relax a little bit?[/b]
Always.
On Tap - Oak Aged Bourbon Porter & Barleywine
Primary - Mead
The problem with the world is that everyone is a few drinks behind.
Primary - Mead
The problem with the world is that everyone is a few drinks behind.
-

Wild - Brewing Master
- Posts: 335
- Joined: Wed Nov 08, 2006 1:22 pm
- Location: Surprise, AZ
Re: 3 Piece vs. S-Bubble Airlocks
miguelito wrote:
Could it be that this packet of liquid yeast is not working as well?
Probably not.
miguelito wrote:Do I recall reading somewhere that fermenting slows a little as temps drop?
Yep.
miguelito wrote:Or maybe it is the diameter of the airlock tube being bigger and less pressure/less bubbling being produced?
The amount of pressure won't be different, but I find the 3 piece airlock creates larger bubbles, which equates to less frequent bubbling.
miguelito wrote:Or maybe I should just relax a little bit?
Nailed it!
Here's to a long life and a merry one
A quick death and an easy one
A pretty girl and an honest one
A cold beer and another one
Cheers,
Dave
Member of The Dead Yeast Society
http://www.deadyeast.com
A quick death and an easy one
A pretty girl and an honest one
A cold beer and another one
Cheers,
Dave
Member of The Dead Yeast Society
http://www.deadyeast.com
-

GuitarLord5000 - Brewing Master
- Posts: 560
- Joined: Thu Nov 08, 2007 4:07 am
- Location: Carencro, Louisiana
Re: 3 Piece vs. S-Bubble Airlocks
You guys rock! 
Primary: Belgian Saison
Secondary: Dry Stout, Tepache, Berliner Weisse
Bottled: Old Ale, Oak Aged Old Ale
On Tap: Dopplebock, Apple/Cherry Cider, American Pale Ale
Coming Soon: Cascadian Dark Ale, Mead
Secondary: Dry Stout, Tepache, Berliner Weisse
Bottled: Old Ale, Oak Aged Old Ale
On Tap: Dopplebock, Apple/Cherry Cider, American Pale Ale
Coming Soon: Cascadian Dark Ale, Mead
-

miguelito - Brewing Master
- Posts: 119
- Joined: Sun Jun 07, 2009 10:44 pm
- Location: Tampa, FL
Re: 3 Piece vs. S-Bubble Airlocks
If you do not want to do a starter use dry yeast. It has more yeasties than the liquid.
Hydromer use is always good practice.
Good luck.
Hydromer use is always good practice.
Good luck.
-

jeepguy - Brewing Master
- Posts: 618
- Joined: Wed Nov 01, 2006 2:56 pm
- Location: Crescent City Ca
5 posts • Page 1 of 1
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