Corn Mash For HERMS - Beer Recipe - Brewer's Friend

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Corn Mash For HERMS

175 calories 17.9 g 12 oz
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Beer Stats
Method: All Grain
Style: Experimental Beer
Boil Time: 60 min
Batch Size: 15 gallons (fermentor volume)
Pre Boil Size: 18 gallons
Pre Boil Gravity: 1.044 (recipe based estimate)
Post Boil Gravity: 1.053 (recipe based estimate)
Efficiency: 75% (brew house)
Calories: 175 calories (Per 12oz)
Carbs: 17.9 g (Per 12oz)
Created: Sunday February 5th 2023
1.053
1.013
5.2%
0.0
2.4
5.8
n/a
 
Fermentables
Amount Fermentable Cost PPG °L Bill %
24 lb Briess - Brewers Yellow Corn Flakes24 lb Brewers Yellow Corn Flakes 34.5 0.8 75%
6 lb US - Pale 2-Row6 lb Pale 2-Row 37 1.8 18.8%
2 lb Rice Hulls2 lb Rice Hulls 0 0 6.3%
32 lbs / $ 0.00
 
Yeast
Red Star - DADY
Amount:
6 Tbsp
Cost:
Attenuation (custom):
75%
Flocculation:
Low
Optimum Temp:
65 - 80 °F
Starter:
No
Fermentation Temp:
-
Pitch Rate:
0.35 (M cells / ml / ° P) 260 B cells required
$ 0.00 Yeast Pitch Rate and Starter Calculator
Priming
CO2 Level: 0 Volumes
 
Target Water Profile
Reverse Osmosis
Ca+2 Mg+2 Na+ Cl- SO4-2 HCO3-
0 0 0 0 0 0
Mash Chemistry and Brewing Water Calculator
Quick Water Requirements
Water Gallons  Quarts
WARNING: Boil kettle capacity (12 gal | 48 qt) exceeded. Volume required: 16.5 gal (66 qt). Suggest reducing initial water volume to 12 gal (48 qt) and adding 4.5 gal (18 qt) sparge/top-off.    
WARNING: Mash tun capacity exceeded. Volume required: 14.56 gal (58.24 qt). Suggest reducing strike water volume to 9.44 gal (37.76 qt) and adding 2.56 gal (10.24 qt) sparge/top-off. 12 48  
Strike water volume at mash thickness of 1.5 qt/lb 12 48  
Mash volume with grains 14.56 58.2  
Grain absorption losses -4 -16  
Remaining sparge water volume (equipment estimates 8.75 g | 35 qt) 10.25 41  
Mash Lauter Tun losses -0.25 -1  
Pre boil volume (equipment estimates 16.5 g | 66 qt) 18 72  
Boil off losses -1.5 -6  
Post boil Volume 15 60  
Going into fermentor 15 60  
Total: 22.25 89
Equipment Profile Used: System Default
 
Notes

This was an experiment to see if I could do a Corn Mash on a HERMS system. I could not find much information on this, but what I did find seemed to indicate that the Mash would likely stick due to the flaked Corn gelling during the first part of the mash.

What I did was add 2 pound of Rice hulls to the flaked corn and add these at 170 degrees. I kept this going for about 30 minutes and then turned off the heating element and let the mash cool to 148 degrees. I then added the 6 pounds of malted barley and kept this at about 145 to 147 for the next 90 minutes.

It was difficult to keep the original corn and rice hulls stirred up and flowing. I had to almost continually stir. However, I stopped stirring from time to time to see what would happen. It basically came to a trickle in about 2 minutes, but I was always able to get the flow going again. It was MUCH easier to keep the flow going after adding the malted barley. I also raised the temperature to 180 in my boil kettle and did a whirlpool to both pasteurize the beer and make it cleaner for the fermenter. The wort was very clean when I put it in.

Once I was done I had an OG of 1.049 with 15 gallons of wort. I added Distillers Active Dry Yeast. My yeast was very well vacuum packed, but old (probably 2 or 3 years old). I tested it first using teaspoon of sugar in 1/2 cup of warm water and the yeast seemed very healthy. I pitched about 60 grams in the 15 gallons and it is fermenting extremely well.

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  • Last Updated: 2023-02-07 16:27 UTC