Brewer's Friend

Print

Mertsin Golden Weasel Ale

142 calories 12.3 g 330 ml
brewer logo
Beer Stats
Method: All Grain
Style: British Golden Ale
Boil Time: 55 min
Batch Size: 22 liters (fermentor volume)
Pre Boil Size: 26.15 liters
Post Boil Size: 23 liters
Pre Boil Gravity: 1.041 (recipe based estimate)
Post Boil Gravity: 1.047 (recipe based estimate)
Efficiency: 60% (brew house)
Calories: 142 calories (Per 330ml)
Carbs: 12.3 g (Per 330ml)
Created: Sunday August 24th 2025
Similar Recipes

Eli's Green Hop

OG: 1.047 FG: 1.008 ABV: 5.0% IBU: 26

1.047
1.008
5.0%
25.8
4.0
5.4
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
2 kg Weyermann - Pilsner2 kg Pilsner 36 1.5 36.4%
2.70 kg Simpsons - Maris Otter pale2.7 kg Maris Otter pale 38 2.4 49.1%
0.80 kg Viking - Finland - Wheat Malt0.8 kg Finland - Wheat Malt 38 2 14.5%
5.50 kg / $ 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
10 g Nelson Sauvin10 g Nelson Sauvin Hops Pellet 15.1 Boil 55 min 18.46 12.5%
20 g Charles Faram - Styrian Kolibri20 g Styrian Kolibri Hops Pellet 2.8 Boil 20 min 4.24 25%
20 g Charles Faram - Bobek20 g Bobek Hops Pellet 4.2 Boil 5 min 2.09 25%
15 g Charles Faram - Styrian Kolibri15 g Styrian Kolibri Hops Pellet 2.8 Boil 5 min 1.05 18.8%
15 g Amarillo15 g Amarillo Hops Pellet 8.8 Boil 0 min 18.8%
80 g / $ 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
0.20 g Potassium Metabisulfite Water Agt Mash 0 min.
3 g Calcium Chloride (anhydrous) Water Agt Mash 1 hr.
3 g Gypsum Water Agt Mash 1 hr.
2.90 ml Lactic acid Water Agt Mash 1 hr.
 
Yeast
Fermentis - Safale - American Ale Yeast US-05
Amount:
1 Each
Cost:
Attenuation (avg):
81%
Flocculation:
Medium
Optimum Temp:
12 - 25 °C
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 90 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 2.45 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
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
23.85 L Strike 71 °C 67 °C 60 min
Starting Mash Thickness: 4.5 L/kg
Starting Grain Temp: 18 °C
Quick Water Requirements
Water Liters
Strike water volume at mash thickness of 4.5 L/kg 24.8
Mash volume with grains 28.4
Grain absorption losses -5.5
Remaining sparge water volume (equipment estimates 9.3 L) 7.8
Mash Lauter Tun losses -0.9
Pre boil volume (equipment estimates 27.6 L) 26.2
Boil off losses -5.2
Hops absorption losses (first wort, boil, aroma) -0.4
Post boil Volume (equipment estimates 22 L) 23
WARNING: Exceeded batch size - reduce boil size  
Going into fermentor (equipment estimates 23 L) 22
Total: 32.6  
Equipment Profile Used: System Default
"Mertsin Golden Weasel Ale" British Golden Ale beer recipe by KoplaBrewing. All Grain, ABV 5.01%, IBU 25.84, SRM 4, Fermentables: (Pilsner, Maris Otter pale, Finland - Wheat Malt) Hops: (Nelson Sauvin, Styrian Kolibri, Bobek, Amarillo) Other: (Potassium Metabisulfite, Calcium Chloride (anhydrous), Gypsum, Lactic acid)
Last Updated and Sharing
 
221
Views
1
Brews
Recipe QR Code
  • Public: Yup, Shared
  • Last Updated: 2025-09-01 16:27 UTC