Stoopsitters Brewing BrewBlog > BrewBlogs > Imperial Stout [Imperial Stout]

BrewBlog: Imperial Stout

Specifics

Style:

Category:	Stout
Number:	13F

An intensely flavored, big, dark ale. Roasty, fruity, and bittersweet, with a noticeable alcohol presence. Dark fruit flavors meld with roasty, burnt, or almost tar-like sensations. Like a black barleywine with every dimension of flavor coming into play.

Commercial Examples: Three Floyd’s Dark Lord, Bell’s Expedition Stout, North Coast Old Rasputin Imperial Stout, Stone Imperial Stout, Samuel Smith Imperial Stout, Scotch Irish Tsarina Katarina Imperial Stout, Thirsty Dog Siberian Night, Deschutes The Abyss, Great Divide Yeti, Southampton Russian Imperial Stout, Rogue Imperial Stout, Bear Republic Big Bear Black Stout, Great Lakes Blackout Stout, Avery The Czar, Founders Imperial Stout, Victory Storm King, Brooklyn Black Chocolate Stout.

Brewer:

Dustin Zastera

Brew Date:

September 9, 2006

Yield:

5 gallons

Calories:

310 (12 ounces)

ABV:

9.1%

ABW:

7.1%

Batch No:	22
OG:	1.093
OG (Plato):	22.22° P
FG:	1.025
FG (Plato):	6.32° P
Real Extract:	9.2° P
App. Atten.:	71.5%
Real Atten.:	58.6%

General Information

Method:	All Grain

Method:

All Grain

Scale Recipe

Enter desired final yield (volume):

gallons

Extract

12.00 pounds	LME - Amber	88.9% of grist
12.00 pounds	Total Extract Weight	88.9% of grist

Malts and Grains

0.50 pounds

British Roasted Barley

Color (L):	500 °L
Info/Use:	Dry, roasted flavor, amber color. For stouts, porters and Scottish ales.

3.7% of grist

0.50 pounds

British Black Patent Malt

Color (L):	500-600 °L
Info/Use:	Dry, burnt, chalky character. Use in porters, stouts, brown ales and dark lagers.

3.7% of grist

0.50 pounds

British Chocolate Malt

Color (L):	395-475 °L
Info/Use:	Nutty, toasted flavor, brown color. Use as a specialty grain in brown ales, porters, stouts and bocks.

3.7% of grist

1.50 pounds

Total Grain Weight (Water Amounts

Water Amounts

Target Final Boil Volume:	5 gallons
Evaporation Rate:	0.78 gallons per hour
Boil Time:	60 minutes
Runoff Volume Needed:	6 gallons	5 gallons (final boil volume) ÷ 0.96 (cooling) + 0.8 gallons (boil evaporation)
Grain Amount:	1.5 pounds
Grain Absorbtion:	0.3 gallons
Total Water Needed:	6.8 gallons	6 gallons (runoff) + 0.3 gallons (grain absorbtion) + .5 gallons (equip. loss)
Mash Water Needed:	0.5 gallons	based on 1.33 quarts per pound of grain
Sparge Water Needed:	6.3 gallons	6.8 gallons (total water) – 0.5 gallons (mash water)

)

11.1% of grist

Non-Fermentables

1 tsp	Yeast Nutrient @ 10 minutes
1 unit	Whirlfloc @ 10 minutes

Hops

1.00 ounces

Galena

Region:	United States
AAU Range:	12 - 14%
Notes:	Strong, clean bittering hop.
Typical Use:	Bittering.
Substitution:	Northern Brewer, Eroica, Cluster
Example:	Ale, Porter, Stout, ESB; Catamount Porter, Devil's Mountain Railroad Ale

13.1% Pellets @ 60 minutes
Type: Bittering
Use: Boil

13.1 AAUs

1.00 ounces

Fuggle

Region:	United Kingdom, United States
AAU Range:	3 - 5%
Notes:	Mild, soft, grassy, floral aroma.
Typical Use:	Aroma, finishing, dry hopping.
Substitution:	East Kent Goldings, Willamette
Example:	English-style Ale, American Ale, ESB, Lager; Samuel Smith's Pale Ale, Old Peculier, Thomas Hardy's Ale; English ales

3.3% Pellets @ 45 minutes
Type: Bittering
Use: Boil

3.3 AAUs

1.00 ounces

Williamette

Region:	United States
AAU Range:	4 - 7%
Notes:	Mild, spicy, grassy, floral aroma.
Typical Use:	Aroma, finishing, dry hopping.
Substitution:	Fuggle
Example:	English-style Ale, Porter, Stout; Sierra Nevada Porter, Ballard Bitter, Anderson Valley Boont Amber

4.1% Pellets @ 10 minutes
Type: Flavor
Use: Boil

4.1 AAUs

3.00 ounces

Total Hop Weight

20.5 AAUs

Boil

Total Boil Time:	60 minutes

Total Boil Time:

60 minutes

Yeast

Name:	Scottish Ale
Manufacturer:	Wyeast
Product ID:	1728
Type:	Ale
Flocculation:	High
Attenuation:	71%
Temperature Range:	55–75°F
Amount:	125 ml

Equipment Profile

Red rectangular cooler

Batch Size:	5 gallons	Boil Volume:	7 gallons
Evaporation Rate:	9% per hour	Mash Tun Dead Space:	0 gallons
Efficiency:	80%	Mash Tun Weight:	10 pounds
Hop Utilization:	100%	Mash Tun Volume:	10 gallons
Loss:	.5 gallons	Mash Tun Specific Heat:	.3 Cal/gram per °C
Notes:	Suitable for larger batches, up to 25 pounds of grain in a thick mash.

Water Profile

Hastings, Minnesota

Calicum:	55 ppm
Bicarbonate:	196 ppm
Sulfate:	7.9 ppm
Chloride:	8.9 ppm
Sodium:	3 ppm
Magnesium:	24 ppm
PH:	7.4%
Notes:	Taken from: "Ground Water Quality in Cottage Grove, MN, June 2000" Prepared by GWMAP

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