Sunday, January 14, 2007

Second AG batch.

I transferred the dry stout to the secondary today. The gravity was still really high, so I added a tsp of amalyse extract and a tsp of wyeast yeast nutrient to the carboy. On to the Rye IPA.

RyeIPA
1/14/2007
AG#2

9.00 lbs. Rahr 2-Row
2.00 lbs. Simpson Golden Promise
3.00 lbs. Rye Malt
2.00 lbs. Crystal 60L
1.00 lbs. CaraFoam
1.00 lbs. White Wheat Malt

Mashed at 151-152° for 75 minutes with 6g (1.33qt/#) of water (tap water treated with 1/2 campden tablet per 5g) and 1? tsp 88% lactic acid.

Added

1.00 oz Mt. Hood @ 5% FWH

Sparged with ~3.25g treated tap water and possibly 2 tsp 88% lactic acid (should have been 0.6ml or ~1/10 tsp)

I collected ~6 gallons and started the boil.

1.25 oz Columbus @ 16.4% 60 min
0.50 oz Mt. Hood @ 5% 30 min
1.50 oz Mt. Hood @ 5% 0 min
0.50 oz Columbus @ 16.4% 0 min

1.0 tsp gypsum @ 40 minutes
1.0 tsp wyeast yeast nutrient @ 15 min
1.0 whirlfloc tablet @ 15 min

I added a little less than a gallon of straight tap water at 20 minutes to bring the volume up.

120 seconds of pure o2

1.063 starting gravity. [well short of 1.083 (70% efficiency) per beer tools]
~55% efficiency

Cooled and pitched on a second generation PacMan yeast cake. Initial pitching thru +3hrs was at 65-69°. I put it out on the porch to cool down some more. Fermentation was active after less than an hour and I have 2-3" of krausen after ~3hrs.

In the morning, the temp looks to be about 63° (externally) and the krausen is all the way to the top. I put in the blowoff tube, but I ran it into a sealed carboy, it didn't take long for the gas to blast the hose out of the blowoff carboy and there was a loud pop and a little bit of beer on the floor. I jammed the blowoff tube back into the carboy and stuck the other side in a bucket. Looks like I lost a little beer, but the krausen seemed to die down a little. Very active fermentation!

1/21/2007 1.0135 (temp adjusted) so 6.5% ABV

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