Saturday, February 21, 2009

For intellectuals

Update: Averaged 34.5 in the first round of the National competition (didn't pass to 2nd round,...tough category). I agree with the comments, and will make this again with some minor changes.

It's overdue.

Batch #32
Rumination DIPA
--15lbs Scot. Golden Promise
--1lbs Crystal 15L
--36AAU Columbus 12%AA, pellets (60min)
--8AAU Centennial 8%AA, pellets (10min)
--8AAU Centennial 8%AA, pellets (0min, steeped for 5)
--2oz Centennial, dry hop
--WLP007 Dry English Ale yeast, 2L starter
OG: 1.071
FG: 1.020
ABV: ~6.7%
IBU: ~110

Mash in to 149F with 5gal (1.25qt/lb) for 60min. Mash out at 170F for 10min. Sparge water 180F, 1 gallon. Collected 6.25gallons of 1.067 wort for an efficiency of 71%. I added 1 tsp gypsum (calcium sulfate) in the mash water for two reasons: my water is really soft and the mash needs calcium, and sulfate accentuates bitterness.

I split the finishing hops from last time into two additions to add some complexity. And I have the right hops this time. And rumor has it, the right yeast. My gravity is a little lower than I expected for just over 5.25gal of finished wort...I probably overestimated the temperature correction when I calculated the mash gravity.

Dry hopped in keg while carbonating. FG is a little high, but it's crawling, so whatever. My stir plate broke (I dropped it), so the yeast population was lower than it should have been. Still tasty.

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