Black Gold (an iStout Clone)

A Russian Imperial Stout following the 8 Wired iStout recipe which came directly from the brewer. Soren Eriksson gave the full recipe specs on The Brewing Network’s ‘Can You Brew It’ podcast (3 Jan 2011). I used a can of light malt extract to provide some of the fermentables and keep my grain bill to a reasonable 8kg. Also worked out really well using some of it as a starter to build up the yeast count from a single packet of US-05. Original gravity came in a little lower (harder to get the usual efficiency with the bigger, higher gravity brews), but still had a pretty decent OG of 1.098. The unhopped wort tasted delicious! Did no-chill (overnight cool in sealed vessel). Poring it into the fermenter next morning, it had a look and consistency of thick black oil, so I’m calling it ‘Black Gold’. The beer tasted great at bottling. My biggest beer brewed to date!

Style Information

Name: Imperial Stout
Recipe Type: All Grain

Grains & Extracts

Name Amount Notes
Pale Ale Malt 5.2 kg
Liquid Malt Extract - Light 1.7 kg
Roasted Barley 0.628 kg
Black Malt 0.314 kg
Brown Malt 0.314 kg
Chocolate, Pale 0.314 kg
Flaked Oats 0.314 kg
Gladfield Light Crystal 0.314 kg
Gladfield Shepherds Delight 0.314 kg

Hops

Name Amount Alpha Acid % AAU Time Notes
Southern Cross 0.015 kg 13% 0.195 60
Southern Cross 0.04 kg 13% 0.52 60
Southern Cross 0.015 kg 13% 0.195 15
Willamette 0.04 kg 5% 0.2 15
Willamette 0.06 kg 5% 0.3 1

Adjuncts

Name Type Use Amount Time Notes
Calcium Chloride Water Agent Mash 0.00628 kg 0
Chalk Water Agent Mash 0.00503 kg 0
Gypsum (Calcium Sulfate) Water Agent Mash 0.00251 kg 0
Koppafloc Fining Boil 0.00101 kg 0

Yeasts

Name Amount Notes
Safale US-05

Mash Steps

Name Step Type Step Time Temperature
Saccharification Rest Infusion 45 67 C

Boil

Amount: 22 liters
Water Description:
Time: 60 minutes
Target Batch Size: 20 liters

Profile

Estimated OG: 1.108
Estimated FG: 1.027
Estimated ABV: 10.80%
 
Actual OG: 1.098
Actual FG: 1.028
Actual ABV: 9.31%
 

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