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RIS recipe check!

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I'm planning to brew this beer on Sunday and thought I'd pass it by the jury. Any feedback would be appreciated.

Russian Imperial Stout 2010
Imperial Stout

Type: All Grain
Date: 3/21/2010
Batch Size: 5.50 gal
Brewer: Bluesman
Boil Size: 6.99 gal 
Boil Time: 120 min 
Brewhouse Efficiency: 65.00

21.00 lb Pale Malt, Maris Otter (3.0 SRM) Grain 80.77 %
2.00 lb Brown Malt (65.0 SRM) Grain 7.69 %
1.00 lb Caramel/Crystal Malt -120L (120.0 SRM) Grain 3.85 %
1.00 lb Victory Malt (25.0 SRM) Grain 3.85 %
0.50 lb Chocolate Malt (350.0 SRM) Grain 1.92 %
0.50 lb Roasted Barley (300.0 SRM) Grain 1.92 %
2.00 oz Mt. Hood [5.10 %] (120 min) Hops 22.1 IBU
1.00 oz Centennial [11.20 %] (75 min) Hops 23.3 IBU
0.75 oz Magnum [14.20 %] (60 min) Hops 21.2 IBU
0.50 oz Zeus [16.40 %] (30 min) Hops 12.5 IBU
1.00 oz Amarillo Gold [8.50 %] (30 min) Hops 13.0 IBU
1.00 oz Hallertauer [4.00 %] (5 min) Hops 1.6 IBU
1.00 items Whirlfloc Tablet (Boil 15.0 min) Misc 
5.50 gal Poland Spring (R) Water 
2 Pkgs SafAle US Ale (Fermentis #S-05) Yeast-Ale 

Beer Profile
Est Original Gravity: 1.113
Est Final Gravity: 1.021
Estimated Alcohol by Vol: 12.13 %
Bitterness: 93.7 IBU
Est Color: 39.9 SRM 
Mash Profile
Single Infusion
60 min Mash In Add 32.50 qt of water at 162.5 F 151.0 F
10 min Sparge Add 16.00 qt of water at 207.6 F 168.0 F


More roast barley, less brown malt?

That looks to me like an unnecessarily complicated hop schedule, too.  I hope your yeast can handle that gravity.  Will you be bottling this?  Just curious.

Ron, with that little roasted malt, you're going to have more of an imperial porter than a RIS.  You need a lot more roast to stand up to the load of malt you have in there.

Otherwise, the grist looks rather familiar  ;D ;)

5 min hallertau looks out of place.
don't think you'll get much out of separating the 60 and 75 min additions - I'd just combine them.

might want to use 3 packs of US-05 or use fresh slurry instead.

On second thought, I think your right about the roast barley. I'll bump it up a notch and recalculate. The hop schedule is somewhat flexible at this point. I will probably tweek it a bit before Sunday.

and Paul your about right...I just checked Mr Malty. I need about 3.5 packs for this big boy.

Jury's still out on this one but getting closer.

Thanks for the input.

the roasted barley, black patent, and chocolate in mine total around 9% (off the top of my head).

also, don't forget as it ages those will mellow, so keep that in mind.


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