------------------------------------------------------------------------------- Four Grain Hefeweizen Supplier: SF Brewcraft Grains: Weight (lb) MME Max GU Name ----------- --- ------ ------ 1.000 35 35.0 American 2-Row 0.500 38 19.0 American Wheat Malt 0.500 29 14.5 Rye 0.500 33 16.5 Oats ----------- --- ------ ------ 2.500 NA 85 Totals Mini Mash Extract Potential 1: 85 GU * 68% / 4 gal = 14.5 GU/Gal Mini Mash Extract Potential 2: 85 GU * 68% / 5 gal = 11.6 GU/Gal Adjusted Mini Mash Extract Potential 1: 14.5 * 3.04 / 2.5 = 17.6 GU/Gal Adjusted Mini Mash Extract Potential 2: 11.6 * 3.04 / 2.5 = 14.1 GU/Gal Cooking Time: 155 F, 45 Min (time for soaking) Malt and Stuff: Weight (lb) MME Max GU Name ----------- --- ------ ------ 5.3 45 238.5 Wheat DME ----------- --- ------ ------ 5.3 NA 238.5 Totals Malt Extract Potential: 238.5 GU * 100% / 5 gal = 47.7 GU/Gal Hops: Amount When Util % AA % Name ------ ---- ------ ---- ---- 1.07 oz 60 MBEOB 24 7.7 Perle 1.07 oz 30 MBEOB 19 3.7 Hallertauer (US) Yeast: White Labs Hefeweizen Ale Yeast WLP300 (35 ml, liquid) Priming: 5 oz dextrose Estimates: Initial GU: 61.8 (14.1 Grains EP + 47.7 Malt EP) Initial SG: 1.062 Final SG: 1.010 ABV: 6.81 Brewing Dates: Brew / 1st F: 01/07/2007 (13 / 13), yeast pitch at 11:36 pm 2nd F: 01/20/2007 (13 / 26) Keg: 02/02/2007 (7 / 33) Tap 02/09/2007 (1 / 34) Fin: 02/10/2007 Aged: 13 days, 2 week(s), 0.5 month(s) Measurements: Brewing Time: ?, 5:48 pm -> ?:?? Mini-Mash Water: 4 qt, 1 Gal (~ 1.25 qt / 1 lb of grains) Sparging Water: 4 qt, 1 Gal (~ 1.50 qt / 1 lb of grains) Ending Mash Water: 1.4 Gal Lost Mash Water: 0.6 Gal Starting Mash Water: 4.00 Gal 1st F Wort Volume: 5 Gal (added 1 Gal) Pre-Grain Water Temp: 166 F Mini Mash Rest Temp: 156 F -> 140 F Mini Mash Rest Time: 45 min, 6:00 -> 6:45 Sparge Water Temp: 153 F Mini Mash Temp to Boil: 88 F -> Boiling Mini Mash Time to Boil: 54 min, 8:12 -> 9:06 Wort Temp to Boil: 189 F -> Boiling Wort Time to Boil: 15 min, 9:23 -> 9:38 Malt Weight: 84.75 oz, 5.3 lb DME weight: 48.65 oz, 3.04 lb Wort Boil Time: 74 min, 9:30 -> 10:44 Wort Cooling Time: 45 min, 10:45 -> 11:30 Wort Yeast Pitch Temp: 79 F Wort Aeration Time: 60 min, 11:38 -> 12:38 Adjusted Mini-Mash GU: 17.6 Adjusted Initial GU: 65.3 (17.6 + 47.7) Mini Mash SG: 1.018 (estimate low by 0.4 GU) Starting Wort SG: 1.074 Boiled Wort SG: 1.088 1st F SG (OG): 1.062 (estimate off by 0 GU) 2nd F SG: 1.017 Keg SG: 1.019 Tap SG (FG): - (estimate high/low by ? GU) Mash Water pH: 8.29 Mini Mash pH: 6.18 Starting Wort pH: 5.74 Boiled Wort pH: 5.54 1st F pH: 5.60 2nd F pH: 4.30 Keg pH: 4.27 Tap pH: - Calculations: ABV: ? (OG - FG) * 131 Apparent attenuation: ? (OG - FG) / (OG - 1) * 100 Mini Mash GU/Gal: 14.4 (estimate low by 0.3 GU, 2) 18 GU * 4 Gal / 5 Gal Malt GU/Gal: 47.6 (estimate high by 0.1 GU) 62 GU - 14.4 GU Wort SG (Wg): 77.5 62 GU * 5 Gal / 4 Gal Cg: 1.0138 1 + ((1.0775 - 1.050) / 0.2) IBU: ? 7,489 / (5 Gal * 1.0138) * ( (W1 oz * A1 AA * U1) + (W2 oz * A2 AA * U2) + (Wn oz * An AA * Un)) BU:GU Ratio: ? IBU / OG GU Brewing Notes: - used tap water - fermenters: plastic primary, 5 Gal corney keg for secondary - Mash was extremly viscious and it took a very long time for any water to filter through, so filtering and sparging took a long time. - didn't realize that i was out of Servomyces :( Fermentation Notes: - i setup the primary fermenter with a blow off tube since i anticipated a rapid fermentation, but the fermentation was extremly slow. i never actually saw it bubble once. even if i agitated the fermenter i didn't get any bubbles. after a week i sampled the beer and it had a SG of 1.018. i also thought it tasted sour and off. i figured that i had a bacterial contaminiation since my last batch was also very sour. i took a sample of the batch and my last batch to sf brewcraft and both griz and one of the other guys there tried them both and assured me that everything tasted ok and i was just crazy. incedentily, we've also had a cold snap these past few weeks with freezing temperatures outside, and it's also gotten pretty cold in the house so it's possible that it was just too cold for the yeast. Notes: - i brought the keg out to a weekend sea ranch. i tapped it around 9 pm on friday night and it was finished during dinner on saturday. i just sat the keg right outside the balcony door in the rain with tap hose and a co2 tank hooked up. it wasn't too cold outside (probably 50s) but people didn't seem to mind. everyone seemed to like it. -------------------------------------------------------------------------------