Ever use a 1 inch blowoff tube to ferment another brew? - Home Brew Forums
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Old 05-22-2012, 04:55 AM   #1
djbradle
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Nov 2011
Central MA, Ma
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I got a high gravity BSDA with WLP 530 that is going gangbusters at 64 degrees in the basement to boot!

I was thinking as I cleaned the floor around the 1 inch blowoff tube sitting in a 1L flask on a cardboard box that maybe I could have placed the blowoff tube in another brew as an open fermentation for science type reasons?

Whaddya think about a 3 gallons o' wort in a small cool ship where the blowoff tube is sticking into?



 
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Old 05-22-2012, 05:01 AM   #2
jotakah
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Aug 2011
Olympia, Washington
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Very cool idea. Have never heard of somebody doing that, but I can imagine it working. It's almost like the first brew is breathing life into the second!! If you give it a shot, please post back about how it turned out.



 
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Old 05-22-2012, 05:25 AM   #3
djbradle
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Nice! I got a golden strong and a wheat dopplebock coming up so I'll try it out! The Weihenstephen yeast should do the trick . . . and actually the 3787 should as well.


I'll make up a wort for the 3787 with a similar belgian grain bill but keep it at no more than three gallons. In my basement I'm afraid some strange mold would take over so I'll keep it a closed system.

I'll use a weizenbock bill for the wheat dopplebock . . . this sounds like fun and is "green" as well! . . .at least as regards the yeast recycle process.

Stay tuned

 
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Old 05-22-2012, 01:50 PM   #4
cmybeer
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The only thing that I'd be concerned about is stressed out yeast cells from the high gravity wort. A tough fermentation like that is tough on the yeast which is why most people harvest yeast from lower gravity beers. You could get some off flavors from the yeast but so long as it's a science experiment I say go for it.

 
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Old 05-22-2012, 03:11 PM   #5
djbradle
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How would the yeast be stressed out from within the first 12-24 hours even in a high gravity beer? If the yeasts' cell walls were strengthened through nutrients in a large starter and they experienced multiplicity I don't see how the yeast would be stressed but rather they'd be strong and viable, or else how would they attenuate the high gravity brew they are starting to work on?

 
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Old 05-22-2012, 03:28 PM   #6
afr0byte
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Aug 2010
Vermont
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They may not be stressed enough to be a problem, but I can see the increased osmotic pressure, from the high sugar concentrations, on their cell wells being a source of stress.

 
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Old 05-22-2012, 04:35 PM   #7
PistolsAtDawn
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I like this concept. Please let us know how it turns out.

 
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Old 05-22-2012, 05:14 PM   #8
lurker18
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I am no expert, but isn't this a Burton Union. Using high krausen to put yeast into a second brew?

 
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Old 05-22-2012, 05:20 PM   #9
bierhaus15
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It would work, but is not ideal. Top cropping is not just repitching whatever is on top the beer at any given time. You really want to wait until more than 50% of the fermentation is complete before cropping the second krausen only.

 
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Old 05-22-2012, 09:35 PM   #10
djbradle
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Nov 2011
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Very interesting. I always thought at high krausen the cropping was to be performed but heck I'll try it out since only at the most violent ferm will I get the blowoff.



 
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