Oh! Idaho! (4th Generation) Beer Recipe | Extract American IPA | Brewer's Friend
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Oh! Idaho! (4th Generation)

13752 calories 1558.6 g 20 qt
Beer Stats
Method: Extract
Style: American IPA
Boil Time: 75 min
Batch Size: 6 gallons (fermentor volume)
Pre Boil Size: 7.5 gallons
Post Boil Size: 7.23 gallons
Pre Boil Gravity: 1.014 (recipe based estimate)
Post Boil Gravity: 1.077 (recipe based estimate)
Efficiency: 40% (steeping grains only)
Source: DL Boatman
Hop Utilization: 91%
Calories: 13752 calories (Per 20qt)
Carbs: 1558.6 g (Per 20qt)
Created: Thursday July 15th 2021
1.077
1.023
7.2%
115.4
10.9
n/a
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
9 lb Briess - DME Golden Light9 lb DME Golden Light - (late boil kettle addition) 44.6 4 55%
1 lb Raw Honey1 lb Raw Honey - (late boil kettle addition) 38 20 6.1%
6 oz Maltodextrin6 oz Maltodextrin - (late boil kettle addition) 39 0 2.3%
10.37 lbs / 0.00
Steeping Grains
Amount Fermentable Cost PPG °L Bill %
8 oz Briess - Caramel Malt - 90L8 oz Caramel Malt - 90L 34.5 90 3.1%
4 lb Great Western - Pure Idaho Pilsen4 lb Pure Idaho Pilsen 37.7 1.5 24.4%
1.50 lb Briess - Carapils Malt1.5 lb Carapils Malt 34.5 1.5 9.2%
0.00
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
1 oz CTZ1 oz CTZ Hops Pellet 15.5 Boil 30 min 47.4 6.3%
1 oz Yakima Valley Hops - Experimental ID-1581 oz Yakima Valley Hops - Experimental ID-158 Hops Pellet 14.4 Boil 3 min 7.13 6.3%
1 oz Yakima Valley Hops - Idaho 7 (12.5 AA)1 oz Yakima Valley Hops - Idaho 7 (12.5 AA) Hops Pellet 12.5 Boil 3 min 6.19 6.3%
1 oz Yakima Valley Hops - Idaho Gem (12.1 AA)1 oz Yakima Valley Hops - Idaho Gem (12.1 AA) Hops Pellet 12.1 Boil 3 min 5.99 6.3%
2 oz Yakima Valley Hops - Idaho 7 (12.5 AA)2 oz Yakima Valley Hops - Idaho 7 (12.5 AA) Hops Pellet 12.5 Hop Stand 15 min 15.6 12.5%
2 oz Yakima Valley Hops - Idaho Gem (12.1 AA)2 oz Yakima Valley Hops - Idaho Gem (12.1 AA) Hops Pellet 12.1 Hop Stand 15 min 15.1 12.5%
2 oz Yakima Valley Hops - Experimental ID-1582 oz Yakima Valley Hops - Experimental ID-158 Hops Pellet 14.4 Hop Stand 15 min 17.98 12.5%
2 oz Yakima Valley Hops - Idaho 72 oz Idaho 7 Hops Pellet 12.5 Dry Hop 4 days 12.5%
2 oz Yakima Valley Hops - Idaho Gem2 oz Idaho Gem Hops Pellet 12.1 Dry Hop 4 days 12.5%
2 oz Yakima Valley Hops - Experimental ID-1582 oz Yakima Valley Hops - Experimental ID-158 Hops Pellet 14.4 Dry Hop 4 days 12.5%
16 oz / 0.00
 
Other Ingredients
Amount Name Cost Type Use Time
1 tsp Gypsum Water Agt Mash 30 min.
1 each Whirlfloc tablet Fining Boil 5 min.
3 g Yeast Nutrient Other Boil 10 min.
2 lb Russet Potatoes, raw, chopped Other Mash 30 min.
0.10 oz Fermcap Fining Boil 75 min.
1 tsp Amylase Other Mash 0 min.
 
Yeast
Wyeast - London Ale III 1318
Amount:
2 Each
Cost:
Attenuation (avg):
73%
Flocculation:
High
Optimum Temp:
64 - 74 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 148 B cells required
0.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: co2       Amount: 11.73 psi       Temp: 40 °F       CO2 Level: 2.45 Volumes
 
Target Water Profile
Light colored and hoppy
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
75 5 10 50 150 0
 
Notes
  1. Add gypsum to 4 gals water in brew kettle, stir to dissolve.
  2. Heat water to 155 degrees.
  3. Add amylase enzyme; pilsner, honey, & carapils malts; and chopped potatoes to brew kettle. Raise temperature to 155-157 degrees and let items steep for 30 minutes then remove from the brew kettle.
  4. Add ~3.5 gals water to wort to bring amount up to 7.5 gals. Bring wort to boil.
  5. After 45 minutes boil, add CTZ hops.
  6. After 65 minutes boil, add honey, maltodextrin, and yeast nutrients.
  7. After 70 minutes boil, add Whirlfloc tablet.
  8. After 72 minutes boil, add Idaho #7, Idaho Gem, and Experimental ID-158 hops.
  9. After 75 minutes of boil, turn off heat and add Idaho #7, Idaho Gem, and Experimental ID-158 hops to wort for 20 minutes of whirlpool/hop stand as part of resting period.
  10. Add distilled water to top-up wort to ~ 7-7.5 gallons.
  11. When fully cooled, transfer to fermentor, aerate, then pitch yeast.
  12. After high krausening subsides (3-4 days) add Idaho #7, Idaho Gem, and Experimental ID-158 hops to fermenter for dry hopping.
  13. After 7-8 days in fermentor, transfer wort to Corney keg and refrigerate.
  14. After 1-2 days of refrigeration, force carbonate with pressurized CO2.

    As a 4th generation Idahoan who lives where the bulk of Idaho hops, barley, and potatoes are grown, and whose great-grandfather owned a bar & dance hall in Idaho City, Idaho Territory, brewing the beer he served using nearby Idaho spring water, it only seems natural to brew an IPA featuring Idaho-based ingredients ... and to carry on the family tradition.
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  • Last Updated: 2025-06-10 00:22 UTC
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