Lagunitas is very closed mouthed about their beers. I talked to them in person and they were less than friendly about it.
Still, I persisted through "other channels" and was able to get some information. I've brewed my clone a couple times and the folks that have tried it think it is pretty close.
Lagunitas IPA A ProMash Recipe Report BJCP Style and Style Guidelines ------------------------------- 07-0 India Pale Ale, India Pale Ale Min OG: 1.050 Max OG: 1.075 Min IBU: 40 Max IBU: 60 Min Clr: 8 Max Clr: 14 Color in SRM, Lovibond Recipe Specifics ---------------- Batch Size (Gal): 10.75 Wort Size (Gal): 10.75 Total Grain (Lbs): 28.00 Anticipated OG: 1.068 Plato: 16.65 Anticipated SRM: 10.9 Anticipated IBU: 57.6 Brewhouse Efficiency: 70 % Wort Boil Time: 90 Minutes Pre-Boil Amounts ---------------- Evaporation Rate: 15.00 Percent Per Hour Pre-Boil Wort Size: 13.87 Gal Pre-Boil Gravity: 1.053 SG 13.07 Plato Formulas Used ------------- Brewhouse Efficiency and Predicted Gravity based on Method #1, Potential Used. Final Gravity Calculation Based on Points. Hard Value of Sucrose applied. Value for recipe: 46.2100 ppppg % Yield Type used in Gravity Prediction: Fine Grind Dry Basis. Color Formula Used: Morey Hop IBU Formula Used: Rager Additional Utilization Used For Plug Hops: 2 % Additional Utilization Used For Pellet Hops: 10 % Grain/Extract/Sugar % Amount Name Origin Potential SRM ----------------------------------------------------------------------------- 75.0 21.00 lbs. Pale Malt(2-row) Great Britain 1.038 3 7.1 2.00 lbs. Crystal 15L America 1.035 15 3.6 1.00 lbs. Crystal 60L America 1.034 60 7.1 2.00 lbs. Munich Malt Germany 1.037 8 3.6 1.00 lbs. Victory Malt America 1.034 25 3.6 1.00 lbs. Wheat Malt America 1.038 2 Potential represented as SG per pound per gallon. Hops Amount Name Form Alpha IBU Boil Time ----------------------------------------------------------------------------- 4.00 oz. Willamette Whole 5.10 38.9 60 min. 2.00 oz. Willamette Pellet 5.10 7.2 20 min. 2.00 oz. Willamette Pellet 5.10 4.3 10 min. 4.00 oz. Willamette Pellet 5.10 7.1 1 min. 4.00 oz. Willamette Pellet 5.10 0.0 Dry Hop Yeast ----- White Labs WLP001 California Ale Mash Schedule ------------- Mash Type: Single Step Grain Lbs: 28.00 Water Qts: 36.40 - Before Additional Infusions Water Gal: 9.10 - Before Additional Infusions Qts Water Per Lbs Grain: 1.30 - Before Additional Infusions Saccharification Rest Temp : 154 Time: 60 Mash-out Rest Temp : 168 Time: 10 Sparge Temp : 170 Time: 60 Total Mash Volume Gal: 11.34 - Dough-In Infusion Only All temperature measurements are degrees Fahrenheit.