German Larger Yeast WLP830 at 70F - off flavors????

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German Larger Yeast WLP830 at 70F - off flavors????

Postby stusiegel » Mon Jan 26, 2015 2:19 pm

On 12/27 I brewed at Bock with a SG of 1.12. Fermentation temp was 53F. I made a 1000 ml stater using White Labs WLP830, German Larger Yeast.

I checked the gravity on 1/17 and 1/20 and it was 1.048. This was to high to consider it finished.

So I moved the fermentor from the chest freezer to inside my house where temp is a constant 70F. I sanitized a spoon and gave the wort and yeast a stir. With hours I had bubble action in the air lock. Worried about off flavors due to larger yeast at 70F. Your thoughts and anyone ever use a larger yeast at high temperature?
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby tookalisten » Mon Jan 26, 2015 5:03 pm

You may be getting airlock activity just from the stir and releasing some CO2; but given the time you have had at cooler temps; I think warming it up to let the yeast clean up is the right thing to do at this point. Let it finish then cold crash and lager.
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby dmtaylor » Mon Jan 26, 2015 9:01 pm

I agree with tookalisten. You've done good. Leave it warm until finished and all will be well. You will not get much if any off-flavors this late in the game. The fermentation was almost finished and thus the predominant character is already in your beer. It will be good. Very good, probably. Enjoy.
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby pclemon » Tue Jan 27, 2015 6:24 am

You also vastly under-pitched the wort. According to Jamil's yeast calculator, a lager of 1.12 SG would, even with a stirplate, like a starter of 2.5l with 5 vials of yeast.

I used WLP830 on a recent series of lager's and was very happy with it. I typically ferment at 52-53 degrees until it's mostly done and warm it up to 65-70 for a D-Rest. What you're doing isn't that different and likely won't lead to much if any in the way of off flavors.
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby stusiegel » Tue Jan 27, 2015 10:00 am

Thanks for the input.

The airlock continued bubbling for at least another 5 days after I moved it inside the house. Hoping FG is between 1.02 and 1.03.

If I have the time I'm looking at racking it off tonight for largering 1 month near freezing temperature. I'll check the gravity and post the results.
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby stusiegel » Tue Jan 27, 2015 10:21 am

I'm looking at making this an Eisbock. I'll larger at near freezing temp for a month. Then I'll take the Johnson Control off the chest freezer and let it freeze for around 9 hrs. Did this once before and it froze ~20% water. That Eibock was amazing!!!! :mrgreen: My friends said it was the best beer I ever made.

I was thinking about maybe making a Maibock and throwing it on yeast cake. Your thoughts?
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby stusiegel » Wed Jan 28, 2015 9:50 am

I checked the FG last night and it was 1.032 and it tasted awesome!!!! :mrgreen: With a SG of 1.12 the current Alcohol level is 11.55%. I racked the beer to secondary carbor and put in the chest freezer at 40F. I plan to drop the temp to 35F for largering 1 month, then I will freeze it to get my eisbock and finally let it larger for another month.

I plan on entering this into the National Home Brew Competition.
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby stusiegel » Fri Apr 03, 2015 10:23 am

My Eisbock won gold at the 2015 Great Arizona Homebrew Competition! :D

http://brewarizona.org/GAHBC-Winner-List-2015.htm
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby turbo_ale » Fri Apr 03, 2015 11:42 am

Great score, 46 points !
ON TAP:
1. 1C
2. 4B
3.
4.
5.
6.
Bottled: Gewurztraminer, Pinot Noir, Cabernet Sauvignon, 16B, 18B, 18E, 19B, 20, 21A, 23, 27
Fermenting:
Next: 5C

BEER, a mixture of malted grains, water, hops and yeast, that is transformed through the course of fermentation that transcends the simplicity of those basic ingredients, fundamentally into the drink of life.
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby Alarmguy » Sat Dec 05, 2015 5:23 pm

What specifically is Lagering and what does it do?
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Re: German Larger Yeast WLP830 at 70F - off flavors????

Postby tookalisten » Sat Dec 05, 2015 6:21 pm

Alarmguy wrote:What specifically is Lagering and what does it do?


Lagering info:
http://howtobrew.com/book/section-1/wha ... n-to-lager
Enjoy the little things, for one day you may look back and realize they were the big things.
~Robert Brault

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