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Old 05-23-2010, 03:44 PM   #1
Join Date: May 2010
Location: Grayslake IL
Posts: 1
Default Delirium Tremens

Okay...I think I have propagated the yeast from a bottle of the Belgian beauty. This is how I think I did it:

-pouring the beer...I noted some particulate
-sensing opportunity...I mixed some LME and water in a flask
-using pipette...I drew off a generous amount of the beer (100ml?)
-I mixed it in the flask...sealed it with an airlock

A week later the fluid still 'foams' when swirled. I have since split the
original fluid into two new flasks...also with airlocks...and the foaming continues question for people out there smarter than me.

1) How will I know if I actually have successfully propagated the yeast? (OTHER than using it...and discovering the primary)

2) (THIS IS EQUALLY IMPORTANT) Does anybody know if DT uses a different or secondary yeast for either finishing the beer...or bottling/keggging?

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Old 05-23-2010, 07:10 PM   #2
Join Date: Oct 2008
Location: NC
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There are different yeasts in there; 3 if memory serves. I've propagated it a few times and used it in a beer once. It was very good.

To answer your first question, make a larger starter then smell the starter. You should get a nose like DT. It is not a lot like any other beer, imo, so you'll probably know what it is straight off. Other than that, you'll have to make at least some beer to be sure and, even then, you'll never be 100% sure without lab testing!

To answer the second question, to my knowledge, DT uses the same yeasts and does not filter out any one strain during bottling. They do have a pretty long fermentation cycle, though.

What I may have done, rather than putting an airlock on the flask, I would have used sanitized foil or the like. Starters / harvested yeast tends to need plenty of air to breath. But, if it is currently foaming, I'd say you're OK. Just keep bumping up the starter size and you should be good to make a beer!

Hope that helps and good luck!
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delirium tremens, propagation, question, yeast
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