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04-04-2009, 02:19 PM
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#111
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Senior Member
Join Date: Jan 2009
Location: Key West, Tampa
Posts: 235
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Quote:
Originally Posted by PseudoChef
Thanks, flyangler!
Damn skippy we do 
*Tangent: foil on primary is not just because I'm lazy, but because it allows less pressure forcing back on the yeast. This leads to a healthier fermentation and drives attenuation. Another BN link, but check out the last show from the White Bros. on The Session. If I have some time today, I'll figure out exactly when the topic comes up.
Also, here is a quote from an online chat with Chris White: "On CO2, [I] reckon that a small amount of dissolved CO2 in a fermentation will seriously reduce yeast performance. Even the small partial pressure of CO2 built up under an airlock will have an effect."
and
"I don't like airlocks, I don't think they are needed in primary. I say keep them off and only put on when fermentation starts to slow down. Prior to that, some loose foil is all you need on top....I would not seal the lid, just put loose foil around the sides. You will notice a faster fermentaiton- less CO2 stress."
Source. ( Chat Transcripts - Dr. Chris White returns - BrewBoard)
End tangent* |
What do you do with high krausen worts such as hefeweizen? Do you still use the foil, or do you use a blow-off?
__________________
"If you don't try it this year, you'll just be another year older when you do" - Warren Miller
WARNING: Drinking may cause memory loss, or worse, memory loss.
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04-04-2009, 03:02 PM
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#112
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Member
Join Date: Feb 2009
Posts: 37
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*Takes airlock off starter*  |
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04-04-2009, 06:03 PM
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#113
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Senior Member
Join Date: Apr 2007
Location: West Chicago 'Burbs, IL
Posts: 3,163
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Quote:
Originally Posted by brew-skies
What do you do with high krausen worts such as hefeweizen? Do you still use the foil, or do you use a blow-off?
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Fermcap-S. |
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04-04-2009, 10:03 PM
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#114
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Be good to your yeast...
Join Date: Jun 2008
Location: Pflugerville, Texas
Posts: 5,426
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Quote:
Originally Posted by PseudoChef
Fermcap-S.
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Foam control FTW!
I'll never suffer a blowoff again... |
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04-04-2009, 11:01 PM
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#115
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Senior Member
Join Date: Jan 2009
Location: Key West, Tampa
Posts: 235
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Quote:
Originally Posted by Saccharomyces
Foam control FTW!
I'll never suffer a blowoff again...
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I use it in all my boils. Does it carry over to krausen reduction, or do you add more to the fermenter? I'm brewing my first hefeweizen tomorrow. BTW, the bottle says 2 drops/gallon, but I usually just add two drops when the foam starts to creep up and it completely disappears.
__________________
"If you don't try it this year, you'll just be another year older when you do" - Warren Miller
WARNING: Drinking may cause memory loss, or worse, memory loss.
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04-06-2009, 03:55 AM
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#116
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Be good to your yeast...
Join Date: Jun 2008
Location: Pflugerville, Texas
Posts: 5,426
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Quote:
Originally Posted by brew-skies
I use it in all my boils. Does it carry over to krausen reduction, or do you add more to the fermenter? I'm brewing my first hefeweizen tomorrow. BTW, the bottle says 2 drops/gallon, but I usually just add two drops when the foam starts to creep up and it completely disappears.
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It settles out with the break so you have to re-add in the fermenter. |
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05-23-2009, 01:57 AM
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#117
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Senior Member
Join Date: Jan 2009
Location: 'Possum knob KY Near lexington
Posts: 663
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Quote:
Originally Posted by PseudoChef
Walk into most science labs that work with sterile media and cultures and just look at all the foil covering the tops of their flasks.
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I been sayin this same **** for years! Noone will listen... and with such a distinguished name and personal appearance as i have its just insulting.   |
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05-23-2009, 09:06 AM
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#118
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Senior Member
Join Date: Feb 2007
Location: Portland
Posts: 3,543
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I think it boils down to this.
Since I have my airlock and stopper or whatever and it makes no difference whatsoever as to attenuation, yeast character, etc, I'm going to use it. I mean it's right there.... and reusable. And my basement is no where near as clean as well... about anything else.
If you don't want to, go for it, I really don't care what your beer tastes like... (unless I have to judge it) |
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05-23-2009, 01:59 PM
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#119
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Senior Member
Join Date: Jan 2009
Posts: 5,012
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Airlocks are a bad thing? I suspect that the American Association of AirLock Manufacturers (AAAM) may disagree.
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05-23-2009, 06:03 PM
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#120
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Senior Member
Join Date: May 2009
Location: Samobor, Croatia
Posts: 1,345
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Interesting stuff. Saw a few people talking about using blowoff systems. That's what I do. So, what's the consensus on how to implement this with a blowoff? Have the tubing drop down into an empty bucket? Since microbes can't fly, they can't fly up the tubing, eh? Only thing that could make that happen is a sharp draft, right?
This link provided earlier by someone in this thread makes for a good read. Of specific interest is the bit about Pasteur's experiment with the goose neck tubing with a sterile liquid inside not getting contaminated.
MB Raines, Ph.D. - Guide to Yeast Culturing for Homebrewers - Maltose Falcons Home Brewing Society (Los Angeles Homebrewing)
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HOMEBREWING SINCE 1997
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