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Old 12-09-2010, 01:35 PM   #1
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Default alcohol tolerance of WL830

Im looking to make a stong Munich helles around 7.5% ABV and was wondering if the WL830 can handle that. The web site says the alcohol tolerance is medium, but that doesnt really tell me much. I looking to do a fairly large starter with this, but before I do that I want to make sure it will work for this recipe.

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Old 12-09-2010, 02:44 PM   #2
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I brewed an Imperial Pilsner that finished at 9% ABV using WLP830. 1.080 down to 1.011. It was 3rd generation yeast pitched according to MrMalty. O2'd to 14ppm and used 8% corn sugar in the grain bill. Brewed on 6/20/10 and became really good after 4 months.

Notes on alcohol tolerance:
Very High: Over 15%
High: 10-15%
Medium-High: 8-12%
Medium: 5-10%
Low: 2-5%

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Old 12-09-2010, 03:24 PM   #3
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So I should be go to go then. Im planning on letting this one lager for a good long while. Thanks for the information.

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Old 12-09-2010, 04:09 PM   #4
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How big of a starter did you use?

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Old 12-09-2010, 05:12 PM   #5
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I pitched 600 mL of 8 day old harvested slurry from a regular Pilsner into 10 gallons of the aforementioned Imperial Pilsner.
~1 Trillion, 57 Billion cells. O2'd through a .5 micron stone at 3Lpm for 70 seconds which gave 14ppm. No starter used and pitched at 45F. A second shot of O2 12 hours after pitching would probably be beneficial but I had a business trip and don't trust the wife to do it.

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Old 12-09-2010, 05:16 PM   #6
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Just a trillion...

off to mr malty to do some calcs.

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