Imperial Stout
BJCP 2008 – 13F

Statistics

Fermentables

Amount Fermentable %
26.75 pounds British Maris Otter Pale Malt 67%
2.50 pounds Crystal Malt 120L 6.3%
3.00 pounds Honey Malt 7.5%
3.00 pounds American Victory Malt 7.5%
1.50 pounds German Carafa III De-Husked Malt Wyermann 3.8%
1.50 pounds British Chocolate Malt 3.8%
0.19 pounds Coffee Malt 0.5%
1.50 pounds Lactose (Milk Sugar) 3.8%
39.94 pounds Total Fermentable Weight 100%

Hops

Amount Hop Time Use Form AA
2.00 ouncesMagnum90 minutesBoilPellets12.0%
1.50 ouncesGoldings, East Kent30 minutesBoilPellets5.0%
3.50 ounces Total Hop Weight

Non-Fermentables

Amount Non-Fermentable Type Use Time
0.25Irish MossSpiceBoil10 minutes

Yeasts

Name Lab/Manufacturer Product ID Form
English AleWhite LabsWLP002Liquid

Equipment Profile Converted Keg, 10 Gallon/38 Liter Cooler Mash Tun

Notes:
Converted 15.5 gallon/59 liter keg boil kettle for full boil with a 10 gallon/38 liter cooler as a mash/lauter tun.

Mash Profile Single Infusion Mash, Full Bodied Beer, No Mash Out

Mash Steps

# Name Time Temp.
1Mash InInfusion45 minutes158° F

Fermentation and Aging

Primary:
1 days @ 77° F
Secondary:
5 days @ 66° F
Tertiary:
2 days @ 70° F
Age:
180 days @ 65° F

Special Procedures

Cold steep Carafa III for 48 hours; add to boil.

Got a growler's worth of fresh WLP002 from CB & Potts. Explosive fermentation within 4 hours. Fermentation was done in 5 days. Increased temp to 70 to round out in final two days.