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Robust Porter 2.5

Method: Extract
Style: American Porter
Boil Time: 60 min
Batch Size: 2.75 gallons (fermentor volume)
Pre Boil Size: 3.25 gallons
Post Boil Size: 2.8 gallons
Pre Boil Gravity: 1.038 (recipe based estimate)
Post Boil Gravity: 1.044 (recipe based estimate)
Efficiency: 60% (steeping grains only)
Calories: 147 calories (Per 12oz)
Carbs: 12.9 g (Per 12oz)

Created: Friday October 4th 2019

Original Gravity:

1.045

Final Gravity:

1.008

ABV (standard):

4.8%

IBU (tinseth):

51.4

SRM (morey):

23.5

Mash pH

n/a

Cost $

n/a

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Fermentables

Amount	Fermentable	Cost	PPG	°L	Bill %
3.30 lb	Liquid Malt Extract - Amber3.3 lb Liquid Malt Extract - Amber		35	10	86.8%
3.30 lbs / $ 0.00

Steeping Grains

Amount	Fermentable	PPG	°L	Bill %
2 oz	Briess - Carabrown Malt2 oz Carabrown Malt	36.3	55	3.3%
2 oz	American - Chocolate2 oz Chocolate	29	350	3.3%
2 oz	Dingemans - Debittered Black - mroost 14002 oz Debittered Black - mroost 1400	0	530	3.3%
2 oz	Belgian - Biscuit2 oz Biscuit	35	23	3.3%
$ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
0.50 oz	Northern Brewer - Centennial0.5 oz Centennial Hops	Pellet	11.1	Boil	60 min	42.78	50%
0.50 oz	Willamette0.5 oz Willamette Hops	Pellet	4.5	Boil	15 min	8.61	50%
1 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
0.50 oz	Northern Brewer - Centennial (Pellet)	42.78	50%
0.50 oz	Willamette (Pellet)	8.61	50%
1 oz / $ 0.00

Yeast

Fermentis - Safale - American Ale Yeast US-05

Amount:	1 Each	Cost:
Attenuation (avg):	81%	Flocculation:	Medium
Optimum Temp:	54 - 77 °F	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 41 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 2.75 Volumes

Target Water Profile

Balanced Profile

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
0	0	0	0	0	0

Notes

This is a kit I bought (Brewer's Best Robust Porter), but I wanted to see what it does to hop utilization and steeping grains if you split it into a 2.5 gallon batch

Answer - it precisely split it 50/50 - which made it 2 points more bitter. It is a little less ABV and lower O.G.

I just noticed that it is a LOT more bitter than the recipe profile packed with it. Should be 27-31 IBUs - this says 51, but before it was estimated to be 49.

Last Updated and Sharing

260

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Brews

Public: Yup, Shared
Last Updated: 2019-10-04 00:46 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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