Saturday, May 7, 2016

BVIP II

And like that, I've reached my one hundred fiftieth batch. Keeping with my tradition of brewing a big dark beer every twenty-fifth batch, I returned to what was such a monumental hit at batch #50, Denny Conn's bourbon vanilla imperial porter. A perfectly refined porter recipe with the addition of vanilla beans and bourbon to approximate barrel aging, this treated DeAunn and me very well on our honeymoon.

I played it pretty much exactly like last time, though the original gravity was quite a bit lower (last time it was 1.085) and I left the vanilla beans in for better than a month, rather than a couple weeks. Nevertheless, it tasted great at bottling and I'm looking forward to cracking open one of these despite the approaching warm weather.

BVIP II
Batch size: 5.5 gallons
Projected OG: 1.072
Projected SRM: 41.1
Projected IBU: 35.0
Boil time: 60 minutes
Brewhouse efficiency: 65%   

Grains
64.0% - 12 lb Rahr 2-row
13.3% - 2.5 lb Weyermann Munich I
8.0% - 1.5 lb Brown malt
6.4% - 1.25 lb UK Chocolate
5.3% - 1 lb C120
2.7% - .5 lb C40

Hops
.7 oz Millennium (15.9%) (60 min)
1 oz EKG (5.7%) (10 min)

Yeast
WY1450 Denny’s Favorite 50 (12.29.2015) - 1.8-l stirplate starter, crashed on brewday

Extras
1 tsp Yeast nutrient (5 min)
2.5 Vanilla beans, chopped & scraped (secondary)
300 ml Bourbon (bottling)

Water (mash)
Base Profile: Reno (brewersfriend.com)
Target Profile: London (brewersfriend.com)
96.1 Ca, 15.6 Mg, 27.0 Na, 58.3 Cl, 2.6 SO4
Alkalinity 103.1, RA 25.4

Brewday: 6 March 2016
Mash: 24 qts @ 152F for 60 minutes
1st sparge: 8.5 qts @ 190F
2nd sparge: 9 qts @ 180F
Pre-boil volume: 8 gallons
Pre-boil SG: 15P (1.060)

Salt additions (mash): 5g Epsom salts, 1g Salt, 3g CaCl, 13g Chalk, 1g Baking soda, 10 ml Lactic acid (88%)

6 gallons at 18P (1.072) to fermenter at 61F. Fermented in swamp cooler at 63F ambient.
Extra runnings (including lots of trub) went to a gallon jug; added water to reach about a gallon. OG 12.8P (1.050), dosed with harvested WY1469.

Vigorous activity within 12 hours. Swamp cooler free rose to 64F ambient over the day.

On day 2 of active fermentation, temp surged and the krauesen rose out of the bucket (stopper hole was covered with aluminum foil. Swamp cooler temp had been pushed to 66F. After cleanup & blowoff setup, fermenter was put back in swamp cooler held at 62-63F ambient. Came out of swamp cooler after high krauesen & finished at 68F ambient.

Secondary: 23 March 2016

Bottled: 30 April 2016
FG: 1.021
ABV: 6.9%
Bottled with 300ml Jim Beam bourbon and 3.8 oz table sugar.
Adjusted ABV: 7.4%

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