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Imperial Stout


read 296 times | 2 replies | posted 5/10/2008 6:32:59 AM
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 P  Fukito 588:17
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i fellow homebrewers. This is my first attempt at an Imperial Stout (brewed Foreign and Tropical before, but never an Imperial). I´m not trying to clone anything, but I remember the bittersweet flavor of Old Rasputin and the velvety chocolate flavor of Courage`s and those are traits I would like to achieve.

Here´s my recipe:

Pale Malt 82%
Chocolate Malt 4%
Roasted Barley 6%
Crystal 60ºL 5%
Crystal 120ºL 3%

Northern Brewer 60 mins - 64 IBU
EKG 30 mins - 17 IBU
Fuggles 20 mins - 3 IBU
Cascade 10 mins - 3 IBU

(The Cascade are there for that touch of citric bittersweetness that I found in Old Rapy, but not 100% sure about that).

So:

OG 1092
FG 1026?
Abv: 8,5%?
IBU: 87

WL004 Irish Ale (cake from a previous brew)

Any input is highly appreciated.

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Phil_L 100:1
not sure about your numbers regarding body - but the last time I brewed an all Malt Impy stout, I did cut the brew back with a second batch of boiled sugars - it lightened the body to a nicer level - which I think helped transfer the flavours better than the all malt bottle that I kept over.

I used an amount of dark muscavado sugars, say 2kg, 1 litre of water, boiled and cooled. I did a grav reading and added 1:1 bu/og ratio of liberty hops to that, just to maintain the bitterness.

complicated I know... but, it was really drinkable.

5/10/2008 9:54:24 AM

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 P  Fukito 588:17
Yep, was thinking about the body. I´m not sure if a nice attenuation would be possible with a grist like that. I considered two options:

1) Adding some sugar to help it dry a bit.
2) Let it ferment for a couple of weeks with WLP004 and then let loose Safale US5. I´ve had experience with similar worts with that yeast and it has attenuated almost 87%. I´m not sure how it would behave within a pretty much hostile enviroment after the WLP004 has done it´s job.

I think I´ll choose the second option, because I´me reluctant to brew with sugar outside the belgian styles (yes, I know many brewers use sugar outside Belgium).
5/11/2008 10:55:34 AM

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