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Imperial IPA

Method: Partial Mash
Style: Imperial IPA
Boil Time: 70 min
Batch Size: 5.5 gallons (fermentor volume)
Pre Boil Size: 4.5 gallons
Pre Boil Gravity: 1.068 (recipe based estimate)
Efficiency: 75% (brew house)
Source: krazydave
Calories: 258 calories (Per 12oz)
Carbs: 24.8 g (Per 12oz)

Created: Thursday February 5th 2015

Original Gravity:

1.078

Final Gravity:

1.017

ABV (standard):

8.1%

IBU (tinseth):

89.9

SRM (morey):

8.5

Mash pH

n/a

Cost $

n/a

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Brew Log History

Target 68°F
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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 %
4.30 lb	American - Pale 2-Row4.3 lb Pale 2-Row	37	1.8	34.2%
12.10 oz	American - Carapils (Dextrine Malt)12.1 oz Carapils (Dextrine Malt)	33	1.8	6%
12.10 oz	American - Munich - Light 10L12.1 oz Munich - Light 10L	33	10	6%
6 oz	Canadian - Honey Malt6 oz Honey Malt	37	25	3%
6 oz	American - White Wheat6 oz White Wheat	40	2.8	3%
3 lb	Dry Malt Extract - Light3 lb Dry Malt Extract - Light	42	4	23.9%
3 lb	Dry Malt Extract - Amber3 lb Dry Malt Extract - Amber - (late boil kettle addition)	42	10	23.9%
201 oz / $ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
0.90 oz	Nugget0.9 oz Nugget Hops	Pellet	14	Boil	60 min	37.15	10.1%
0.90 oz	Citra0.9 oz Citra Hops	Pellet	11	Boil	30 min	22.43	10.1%
0.90 oz	Citra0.9 oz Citra Hops	Pellet	11	Boil	15 min	14.48	10.1%
0.90 oz	Citra0.9 oz Citra Hops	Pellet	11	Boil	10 min	10.58	10.1%
0.90 oz	Citra0.9 oz Citra Hops	Leaf/Whole	11	Boil	5 min	5.29	10.1%
1.20 oz	Citra1.2 oz Citra Hops	Pellet	11	Dry Hop	12 days		13.5%
0.50 oz	Cascade0.5 oz Cascade Hops	Pellet	7	Dry Hop	12 days		5.6%
0.70 oz	Citra0.7 oz Citra Hops	Pellet	11	Dry Hop	9 days		7.9%
0.90 oz	Cascade0.9 oz Cascade Hops	Pellet	7	Dry Hop	6 days		10.1%
1.10 oz	Citra1.1 oz Citra Hops	Pellet	11	Dry Hop	3 days		12.4%
8.90 oz / $ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
0.90 oz	Nugget (Pellet)	37.15	10.1%
5.70 oz	Citra (Pellet) 5.6999999869616 oz Citra (Pellet) Hops	47.49	64.1%
0.90 oz	Citra (Leaf/Whole)	5.29	10.1%
1.40 oz	Cascade (Pellet)	0	15.7%
8.90 oz / $ 0.00

Mash Guidelines

Amount	Description	Type	Start Temp	Target Temp	Time
9.8 qt	low temp for lower final gravity	Infusion	--	150 °F	60 min
		Temperature	--	167 °F	10 min
10.6 qt	heat water to 173F	Sparge	--	170 °F	--

Other Ingredients

Amount	Name	Type	Use	Time
1 tsp	gypsum	Water Agt	Mash	--
1 tsp	gypsum	Water Agt	Boil	70 min.
1 each	whirlfloc	Fining	Boil	15 min.

Yeast

White Labs - California Ale Yeast WLP001

Amount:	1 Each	Cost:
Attenuation (avg):	76.5%	Flocculation:	Medium
Optimum Temp:	68 - 73 °F	Starter:	Yes
Fermentation Temp:	68 °F	Pitch Rate:	1.25 (M cells / ml / ° P) 491 B cells required

$ 0.00 Yeast Pitch Rate and Starter Calculator

Target Water Profile

Light colored and hoppy

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
75	5	10	50	150	0
8 grams gypsum = 2 tsp
Mash Chemistry and Brewing Water Calculator

Notes

http://beersmithrecipes.com/viewrecipe/17432/citra-double-ipa-clone-kern-river-brewing-company-cybi-podcast-version

Other notes"
The other thing step mashing allows is for rests at the optimal temperatures for beta amylase and alpha amylase as well as a controlled temperature ramp from the beta rest to the alpha rest. This to me is the real key to step mashing because it gives the brewer the ability to increase wort fermentability. Most highly dry beers have a long rest at 140 °F (60 °C) for beta amylase and then a slow ramp up to 158 °F (70 °C) for the alpha rest. The result is an increase in wort fermentability as compared to infusion mashing at a single temperature.

Last Updated and Sharing

1,205

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Brews

Public: Yup, Shared
Last Updated: 2015-09-13 14:30 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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Imperial IPA

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