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RIS recipe check!

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bluesman:
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

Ingredients
 
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

 
 

roguejim:
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.

blatz:
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.

bluesman:
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.

blatz:
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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