Lagunitas IPA Clone : Can You Brew It (04/27)

[gillmanjs]

I got the IBUs to work but the OG is still way high.

[Brant]

what hopping schedule did you get to work? Im brewing this tomorrow and would really appreciate an accurate schedule before I screw it up. thanks

[Brant]

nevermind.

[sexychicken]

Yeah, I'm having problems with this as well. Just reviewed the show in the archives and wrote down the original recipe, then transferred it into BeerAlchemy for my system. Have my OG and FG at 14.82 P and 4.5 P, respectively and reviewed my hop calcs (using Tinseth rather than Rager). However, my IBUs are only coming out to 35.6 (tinseth) rather than 46 or so. Also, my ABV is only coming out to 5.3% given Wyeast 1968 default attenuation of 66%. I imagine possibly ramping the temp from 66 to 70 over time would increase this to 70-80% attenuation?

Thoughts?

Here's my print out from BeerAlchemy:

Lagunitas IPA

Recipe Overview
Wort Volume Before Boil: 7.50 US gals Wort Volume After Boil: 6.00 US gals
Volume Transferred: 5.50 US gals Water Added To Fermenter: 0.0 qts
Volume At Pitching: 5.50 US gals Volume Of Finished Beer: 5.00 US gals
Expected Pre-Boil Gravity: 1.046 SG Expected OG: 1.057 SG
Expected FG: 1.017 SG Apparent Attenuation: 69.0 %
Expected ABV: 5.3 % Expected ABW: 4.1 %
Expected IBU: (using Tinseth): 35.6 IBU Expected Color: (using Morey): 8.5 SRM
BU:GU ratio: 0.63 Approx Color:
Mash Efficiency: 70.0 %
Boil Duration: 60.0 mins
Fermentation Temperature: 66 ˚F


Fermentables
Ingredient Amount % MCU When
US 2-Row Malt 10lb 0oz 75.1 % 3.0 In Mash/Steeped
US White Wheat Malt 13.00 oz 6.1 % 0.3 In Mash/Steeped
US Munich 10L Malt 12.00 oz 5.6 % 1.3 In Mash/Steeped
US Caramel 10L Malt 10.00 oz 4.7 % 1.0 In Mash/Steeped
US Caramel 20L Malt 10.00 oz 4.7 % 2.1 In Mash/Steeped
US Caramel 60L Malt 8.00 oz 3.8 % 5.0 In Mash/Steeped


Hops
Variety Alpha Amount IBU Form When
US Horizon 12.0 % 0.28 oz 10.8 Loose Pellet Hops 60 Min From End
US Summit 18.5 % 0.05 oz 3.0 Loose Pellet Hops 60 Min From End
US Willamette 4.6 % 0.94 oz 10.5 Loose Pellet Hops 30 Min From End
US Centennial 10.0 % 0.47 oz 11.4 Loose Pellet Hops 30 Min From End
US Cascade 4.5 % 1.21 oz 0.0 Loose Pellet Hops At turn off
US Cascade 4.5 % 0.67 oz 0.0 Loose Pellet Hops Dry-Hopped
US Centennial 8.5 % 0.67 oz 0.0 Loose Pellet Hops Dry-Hopped


Other Ingredients
Ingredient Amount When
Whirlfloc Tablet 1.00 oz In Mash


Yeasts
Yeast Strain Amount Used
Wyeast 1968-London ESB Ale 2 packs or appropriate starter


Mash Schedule
Mash Type: Full Mash
Schedule Name: Single Step Infusion (70C-158F) w/Mash-Out

Step Type Temperature Duration
Rest at 158 ˚F 60
Raise to and Mash out at 170 ˚F 10