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German Wheat Beer Book - Isar Weizen

168 calories 17.6 g 12 oz
Beer Stats
Method: All Grain
Style: Witbier
Boil Time: 90 min
Batch Size: 19 liters (fermentor volume)
Pre Boil Size: 27.63 liters
Post Boil Size: 19 liters
Pre Boil Gravity: 1.035 (recipe based estimate)
Post Boil Gravity: 1.051 (recipe based estimate)
Efficiency: 75% (brew house)
Source: John Cowan Beer Recipes
Calories: 168 calories (Per 12oz)
Carbs: 17.6 g (Per 12oz)
Created: Sunday May 31st 2026
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Fermentables
Amount Fermentable Cost PPG °L Bill %
1,397 g Simpsons - Extra Pale Ale Malt1397 g Extra Pale Ale Malt 35.82 2.2 32.3%
2,934 g Weyermann - Pale Wheat2934 g Pale Wheat 36 2 67.7%
4,331 g / £ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
23 g Hallertau Hersbrucker23 g Hallertau Hersbrucker Hops Pellet 4 Boil 60 min 14.03 100%
23 g / £ 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
10.2 L raising to 50 Temperature 55.4 °C 41 °C 10 min
Steeping 50 °C 50 °C 35 min
4 litre drawn off Decoction 50 °C 71 °C 15 min
Decoction 71 °C 100 °C 14 min
1.2 L Temperature 50 °C 71 °C 30 min
6.9 L Temperature 71 °C 77 °C 10 min
Starting Mash Thickness: 3.1 L/kg
Starting Grain Temp: 18 °C
 
Other Ingredients
Amount Name Cost Type Use Time
0.50 tsp Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
0.25 tsp Gypsum Water Agt Mash 1 hr.
3.95 ml Lactic acid Water Agt Mash 1 hr.
0.80 ml Lactic acid Water Agt Sparge 1 hr.
Priming
CO2 Level: 2.2 Volumes
 
Target Water Profile
Light colored and malty
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
60 5 10 95 55 0
Mash Chemistry and Brewing Water Calculator
"German Wheat Beer Book - Isar Weizen" Witbier beer recipe by John Cowan Beer Recipes. All Grain, ABV 5.05%, IBU 14.03, SRM 3.81, Fermentables: (Extra Pale Ale Malt, Pale Wheat) Hops: (Hallertau Hersbrucker) Other: (Calcium Chloride (dihydrate), Gypsum, Lactic acid)
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  • Public: Yup, Shared
  • Last Updated: 2026-05-31 13:21 UTC
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