Finnians Potato Beer Beer Recipe | BIAB Irish Red Ale | Brewer's Friend
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Finnians Potato Beer

166 calories 19 g 12 oz
Beer Stats
Method: BIAB
Style: Irish Red Ale
Boil Time: 60 min
Batch Size: 5 gallons (fermentor volume)
Pre Boil Size: 6.28 gallons
Post Boil Size: 5 gallons
Pre Boil Gravity: 1.040 (recipe based estimate)
Post Boil Gravity: 1.050 (recipe based estimate)
Efficiency: 74% (brew house)
Source: Herr Stein
Hop Utilization: 99%
Calories: 166 calories (Per 12oz)
Carbs: 19 g (Per 12oz)
Created: Tuesday January 12th 2021
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OG: 1.048 FG: 1.010 ABV: 4.9% IBU: 22

1.050
1.015
4.7%
21.0
17.0
5.4
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
5 lb United Kingdom - Maris Otter Pale5 lb Maris Otter Pale 38 3.75 58.2%
0.46 lb Weyermann - CaraAroma0.46 lb CaraAroma 36 140 5.4%
0.25 lb German - CaraFoam0.25 lb CaraFoam 37 1.8 2.9%
0.50 lb German - Melanoidin0.5 lb Melanoidin 37 25 5.8%
2 oz United Kingdom - Roasted Barley2 oz Roasted Barley 29 550 1.5%
0.25 lb Raw Honey0.25 lb Raw Honey 38 20 2.9%
2 lb flaked potato - US - flaked potato - Extra Pale Malt2 lb US - flaked potato - Extra Pale Malt 33 1.8 23.3%
8.58 lbs / 0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
0.75 oz East Kent Goldings0.75 oz East Kent Goldings Hops Pellet 6.8 Boil 60 min 20.98 100%
0.75 oz / 0.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
7.5 gal Infusion 157 °F 152 °F 90 min
 
Other Ingredients
Amount Name Cost Type Use Time
1 tsp Calcium Chloride (dihydrate) Water Agt Mash 1 hr.
0.25 tsp Gypsum Water Agt Mash 1 hr.
1.14 ml Lactic acid Water Agt Mash 1 hr.
 
Yeast
Imperial Yeast - A09 Pub
Amount:
1 Each
Cost:
Attenuation (avg):
69%
Flocculation:
Very High
Optimum Temp:
64 - 70 °F
Starter:
No
Fermentation Temp:
65 °F
Pitch Rate:
0.35 (M cells / ml / ° P) 82 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: dextrose       Amount: 4 oz       Temp: 68 °F       CO2 Level: 2.25 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
107 9 14 96.8 113.6 101
Mash Chemistry and Brewing Water Calculator
 
Notes
  • Potato adds almost zero flavor and only serves to dry out the beer but it does add "something".
  • Deep red, malty and a little biscuity. Great head and foam retention.
    -Carbonate lower than normal. Carbonic bite will take away flavor.
  • Use wlp004 (more dry) or Pub ale (more malty) yeast for best results. S-04 in a pinch but will add more floral notes.
Recipe Photos
Last Updated and Sharing
 
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Recipe QR Code
  • Public: Yup, Shared
  • Last Updated: 2026-02-14 23:02 UTC
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