Grackle - Polotmavy Human Robot Clone Beer Recipe | All Grain Czech Amber Lager | Brewer's Friend
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Grackle - Polotmavy Human Robot Clone

159 calories 17.2 g 12 oz
Beer Stats
Method: All Grain
Style: Czech Amber Lager
Boil Time: 75 min
Batch Size: 5 gallons (fermentor volume)
Pre Boil Size: 7.5 gallons
Post Boil Size: 5.5 gallons
Pre Boil Gravity: 1.035 (recipe based estimate)
Post Boil Gravity: 1.048 (recipe based estimate)
Efficiency: 65% (brew house)
Hop Utilization: 84%
Calories: 159 calories (Per 12oz)
Carbs: 17.2 g (Per 12oz)
Created: Thursday June 26th 2025
1.048
1.013
4.7%
30.9
16.3
5.5
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
7.50 lb Weyermann - Floor-Malted Bohemian Pilsner7.5 lb Floor-Malted Bohemian Pilsner 36.3 1.9 73.2%
2.50 lb Weyermann - Floor malted Bohemian Dark2.5 lb Floor malted Bohemian Dark 37 7 24.4%
4 oz Weyermann - Carafa Special Type III4 oz Carafa Special Type III 29.9 525 2.4%
10.25 lbs / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
0.30 oz Saaz0.3 oz Saaz Hops Pellet 3.5 First Wort 0 min 4.39 13.6%
0.30 oz Magnum0.3 oz Magnum Hops Pellet 15 Boil 60 min 16.37 13.6%
1.60 oz Saaz1.6 oz Saaz Hops Pellet 3.5 Boil 15 min 10.11 72.7%
2.20 oz / 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
8.42 gal Infusion 65 °F 153 °F 60 min
Starting Mash Thickness: 1.294 qt/lb
 
Other Ingredients
Amount Name Cost Type Use Time
1 tsp Irish Moss Fining Boil 15 min.
0.50 tsp Yeast Nutrient Other Boil 10 min.
0.25 tsp Chalk Water Agt Mash 1 hr.
0.75 tsp Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
0.13 tsp Epsom Salt Water Agt Mash 1 hr.
0.50 tsp Gypsum Water Agt Mash 1 hr.
0.25 tsp Baking Soda Water Agt Mash 1 hr.
1 tsp Lactic acid Water Agt Mash 1 hr.
 
Yeast
Imperial Yeast - L13 Global
Amount:
1 Each
Cost:
Attenuation (avg):
73%
Flocculation:
Medium-low
Optimum Temp:
46 - 56 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 79 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.25 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
80 5 25 75 80 100
Mash Chemistry and Brewing Water Calculator
"Grackle - Polotmavy Human Robot Clone" Czech Amber Lager beer recipe by Grackle Brewery. All Grain, ABV 4.68%, IBU 30.87, SRM 16.28, Fermentables: (Floor-Malted Bohemian Pilsner, Floor malted Bohemian Dark, Carafa Special Type III) Hops: (Saaz, Magnum) Other: (Irish Moss, Yeast Nutrient, Chalk, Calcium Chloride (dihydrate), Epsom Salt, Gypsum, Baking Soda, Lactic acid)
Recipe Picture
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  • Public: Yup, Shared
  • Last Updated: 2025-06-26 22:19 UTC
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