Author Topic: WLP002 English Ale Attenuation  (Read 1213 times)

Qs

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WLP002 English Ale Attenuation
« on: February 17, 2017, 05:37:07 PM »
I kegged an ESB today with first generation 002 that attenuated a few points lower than the beersmith target. Then I was reading here http://scottjanish.com/analyzing-wlp002-over-25-batches/ that Janish found 002 quite a good attenuator when the mash was a little lower. I pitched the 2nd generation into another beer with the same OG (1.053) and same mash temp (65C)today too so we'll see. Next week I'm going to make a slightly smaller beer but mash at 67 or 68 and see how that works out.

Has anyone else found 002 finishes lower than Beersmith predicts?

Vermelho

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Re: WLP002 English Ale Attenuation
« Reply #1 on: February 17, 2017, 05:51:52 PM »
I just checked my Pale Ale after 5 days and it was expected hit OG of 1.019 but is at 1.010 now. I also missed my SG which should have been 1.061 and was 1.055 instead. Maybe that explains it? Beersmith should probably adjust for that?

mick02

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Re: WLP002 English Ale Attenuation
« Reply #2 on: February 21, 2017, 12:35:55 PM »
I found that it attenuated very very quickly as pointed out in this post ... http://www.nationalhomebrewclub.ie/forum/yeast-board/turbo-attenuation/

I never had any problems with it blazing past my expected FG though.
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Vermelho

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Re: WLP002 English Ale Attenuation
« Reply #3 on: February 21, 2017, 02:05:49 PM »
Mines still bubbling away but only down to 1.009. Will prob wait another week or two to dry hop it

Qs

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Re: WLP002 English Ale Attenuation
« Reply #4 on: February 21, 2017, 02:51:59 PM »
Thats definitely more than just missing your OG, you missed it by 6 points and your FG is down by 10. Should have been more like down 4 points.

What did you mash at?

imark

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Re: WLP002 English Ale Attenuation
« Reply #5 on: February 21, 2017, 08:31:38 PM »
I made a barleywine with WLP002 back in October and got 80% attenuation and a little over 12% Abv.

Vermelho

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Re: WLP002 English Ale Attenuation
« Reply #6 on: February 21, 2017, 08:38:35 PM »
Thats definitely more than just missing your OG, you missed it by 6 points and your FG is down by 10. Should have been more like down 4 points.

What did you mash at?

66c was my mash temp. Held steady for an hour. Current attenuation is 83%.

Frequent Sequence

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Re: WLP002 English Ale Attenuation
« Reply #7 on: February 21, 2017, 10:11:17 PM »
I made a barleywine with WLP002 back in October and got 80% attenuation and a little over 12% Abv.

Just finished primary on a Russian Imperial Stout.

Original Gravity:    
20.01 °P, 1.083
Final Gravity:    
3.83 °P, 1.015
Alcohol By Volume:    
9.56%
Apparent Attenuation:    
81%


I did make a large starter. 400ml of thick slurry In 19L wort.
Harvested from fullers ipa. Rouse the yeast twice and ramp temp from 18.5 to 21 after four days.
Great result.
Step mash ramping from 55 to 65 scarification rest was 65 for 60 mins.