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GranPa-D's Oatmeal Stout 2025

Method: All Grain
Style: Oatmeal Stout
Boil Time: 90 min
Batch Size: 23 liters (fermentor volume)
Pre Boil Size: 29.18 liters
Post Boil Size: 26.05 liters
Pre Boil Gravity: 1.036 (recipe based estimate)
Post Boil Gravity: 1.053 (recipe based estimate)
Efficiency: 78% (brew house)
Source: Dirk L Pletcher
Hop Utilization: 97%
Calories: 173 calories (Per 12oz)
Carbs: 15.7 g (Per 12oz)

Created: Monday November 10th 2025

Oatmeal Stout 009

by MAS-BRAUHAUS

OG: 1.056 FG: 1.013 ABV: 5.7% IBU: 29

ATF Oatmeal Stout

by nisman

OG: 1.057 FG: 1.013 ABV: 5.8% IBU: 30

Smooth Stout

by ColinChurchward

OG: 1.050 FG: 1.012 ABV: 5.0% IBU: 33

Original Gravity:

1.053

Final Gravity:

1.010

ABV (standard):

5.6%

IBU (tinseth):

29.7

SRM (morey):

38.8

Mash pH

5.6

Cost $

n/a

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Brew Log History

Target 19°C
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Attenuation: {{ stats.attenuation | number:2 }}%

Calories: {{ stats.calories | number:1 }} / 12oz
Carbs: {{ stats.carbs | number:1 }} g / 12oz

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Device Filter
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Fermentables

Amount	Fermentable	PPG	°L	Bill %
3.75 kg	Rahr - Standard 2-Row3.75 kg Standard 2-Row	36.8	1.8	69%
0.34 kg	Dingemans - Biscuit0.34 kg Biscuit - (late mash tun addition)	34.5	22	6.3%
0.45 kg	Rolled Oats0.454 kg Rolled Oats	33	2.2	8.3%
0.23 kg	Simpsons - Crystal Medium0.227 kg Crystal Medium - (late mash tun addition)	33	65.01	4.2%
0.05 kg	Bestmalz - BEST Spelt0.05 kg BEST Spelt - (late mash tun addition)	37.7	2.2	0.9%
0.05 kg	Weyermann - Carafa III0.05 kg Carafa III - (late mash tun addition)	32	525	0.9%
0.24 kg	Briess - Chocolate0.24 kg Chocolate - (late mash tun addition)	25	350	4.4%
0.10 kg	Weyermann - Chocolate Wheat0.1 kg Chocolate Wheat - (late mash tun addition)	34.8	415	1.8%
0.23 kg	Bairds - Roasted Barley0.227 kg Roasted Barley - (late mash tun addition)	33	600	4.2%
5.44 kg / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
30 g	East Kent Goldings30 g East Kent Goldings Hops	Pellet	5.6	Boil	90 min	21.85	66.7%
15 g	East Kent Goldings15 g East Kent Goldings Hops	Pellet	5.6	Boil	30 min	7.85	33.3%
45 g / $ 0.00

Show Summary View

Amount	Variety	Cost	IBU	Bill %
45 g	East Kent Goldings (Pellet) 45 g East Kent Goldings (Pellet) Hops		29.7	100%
45 g / $ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
21.6 L	Strike	68 °C	67 °C	90 min
12.46 L	Sparge	76 °C	76 °C	15 min
Starting Mash Thickness: 4 L/kg Starting Grain Temp: 18 °C

Other Ingredients

Amount	Name	Type	Use	Time
3 g	Calcium Chloride (anhydrous)	Water Agt	Mash	1 hr.
3 g	Gypsum	Water Agt	Mash	1 hr.
3 g	Baking Soda	Water Agt	Mash	1 hr.
1.70 g	sodium metabisulfite	Water Agt	Mash	1 hr.
0.17 ml	fermcap s	Water Agt	Boil	95 min.
0.50 tsp	Wyeast - Beer Nutrient	Other	Boil	10 min.
1 tsp	Irish Moss	Fining	Boil	3 min.
5 g	Magnesium Chloride	Water Agt	Mash	1 hr.
3 g	Slaked Lime	Water Agt	Mash	1 hr.
1.32 g	Citric acid	Water Agt	Mash	1 hr.

Yeast

Lallemand - LALBREW® NOTTINGHAM HIGH PERFORMANCE ALE YEAST

Amount:	2 Each	Cost:
Attenuation (avg):	80%	Flocculation:	High
Optimum Temp:	10 - 22 °C	Starter:	No
Fermentation Temp:	19 °C	Pitch Rate:	0.5 (M cells / ml / ° P) 151 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

Method: dextrose Amount: 167.3 g Temp: 22 °C CO₂ Level: 2.47 Volumes

Target Water Profile

RO + SMB

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
100	20	12	115	90	50
Sodium Metabisulfite added at 50 ppm
Mash Chemistry and Brewing Water Calculator

Notes

Grains treated with 2% by weight water with 25 ppm Sodium Meta Bisulfite, just before grinding. Rolled oats toasted at 325 F convection bake for 30 minutes before adding to ground mash grains. Allow toasted oats to set for at least 3 days in paper bag or open container before using.

Mash water boiled before use to reduce oxygen level. Sodium Meta Bisulfite (Campden tabs) added as powder @ 50 ppm to prevent Hot Side Oxidation (will add 11.6 ppm Na+ and 40.5 ppm SO3- aq to water profile)

Slaked Lime added just before adding steeped grains.

Add 5 drops Fermcap S prior to boil.

Cool wort to 19 C (66F) before pitching yeast

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2025-12-29 00:08 UTC

Recipe costs can be adjusted by changing the batch size. They won't be saved but will give you an idea of costs if your final yield was different.

Cost for

Gallons

Cost by

Final Yield

	Cost $	Cost %
Fermentables	$
Steeping Grains (Extract Only)	$
Hops	$
Yeast	$
Other	$
Cost Per Barrel	$ 0.00
Cost Per Pint	$ 0.00
Total Cost	$ 0.00

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GranPa-D's Oatmeal Stout 2025

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