Koji rice beer GF - Hops Beer Recipe | Partial Mash Experimental Beer | Brewer's Friend
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Koji rice beer GF - Hops

127 calories 11.6 g 330 ml
Beer Stats
Method: Partial Mash
Style: Experimental Beer
Boil Time: 60 min
Batch Size: 20 liters (fermentor volume)
Pre Boil Size: 26.2 liters
Post Boil Size: 20 liters
Pre Boil Gravity: 1.032 (recipe based estimate)
Post Boil Gravity: 1.042 (recipe based estimate)
Efficiency: 70% (brew house)
Source: Specify_jai
Calories: 127 calories (Per 330ml)
Carbs: 11.6 g (Per 330ml)
Created: Monday October 13th 2025
1.042
1.008
4.5%
100.8
17.6
n/a
48.33
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
850 g American - Medium Roasted Millet Malt - Gluten Free850 g Medium Roasted Millet Malt - Gluten Free 25 36 21%
100 g Rice Hulls100 g Rice Hulls 5.33 / kg
0.53
0 0 2.5%
1 kg Blue Lake Milling - Blue Lake Milling - koji flaked rice1 kg Blue Lake Milling - koji flaked rice 8.00 / kg
8.00
40 15 24.7%
2.10 kg Blue Lake Milling - Blue Lake Milling - Flaked Rice2.1 kg Blue Lake Milling - Flaked Rice 8.00 / kg
16.80
40 20 51.9%
4.05 kg / 25.33
 
Hops
Amount Variety Cost Type AA Use Time IBU Bill %
100 g Eclipse AU Hops100 g Eclipse AU Hops Hops 0.08 / g
8.00
Pellet 18.7 Boil at 100 °C 10 min 100.78 100%
100 g / 8.00
 
Mash Guidelines
Amount Description Type Start Temp Target Temp Time
10 L steep rice and koji Steeping 20 °C 60 °C 45 min
10 L sparge, add malt, boil Sparge 60 °C 100 °C 55 min
10 L add hops Infusion 100 °C 100 °C 5 min
 
Yeast
Bluestone Yeast Co. - BSY-A005 Brussels
Amount:
100 Milliliters
Cost:
0.15 / ml
15.00
Attenuation (custom):
80%
Flocculation:
Low
Optimum Temp:
-18 - -18 °C
Starter:
No
Fermentation Temp:
22 °C
Pitch Rate:
0.35 (M cells / ml / ° P) 73 B cells required
15.00 Yeast Pitch Rate and Starter Calculator
Priming
Method: sucrose       Amount: 119.1 g       Temp: 20 °C       CO2 Level: 2.35 Volumes
 
Target Water Profile
Balanced Profile
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
Mash Chemistry and Brewing Water Calculator
 
Notes

Experimental brew comparing use of non-toasted koji rice/mugwort vs toasted koji rice/hops for effects on flavour, body and head retention, as well as the citric acid level as a by product of the koji

koji strain: Aspergillus kawachii (non pigmented strain of black koji)

Will update recipe when brews are completed, or as I go during the process

Oh, this is my first beer. I take no accountability for terrible beer if you attempt this recipe

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  • Public: Yup, Shared
  • Last Updated: 2026-01-13 06:55 UTC
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