Obsession

Method: All Grain
Style: American IPA
Boil Time: 60 min
Batch Size: 6.5 gallons (ending kettle volume)
Pre Boil Size: 8 gallons
Pre Boil Gravity: 1.046 (recipe based estimate)
Efficiency: 70% (ending kettle)
Source: Matt Liddy
Calories: 209 calories (Per 12oz)
Carbs: 17 g (Per 12oz)

Created Friday January 29th 2016

Original Gravity:

1.064

Final Gravity:

1.009

ABV (standard):

7.15%

IBU (rager):

67.48

SRM (morey):

4.2

Mash pH

n/a

Fermentables

Amount	Fermentable	PPG	°L	Bill %
6 lb	German - Pilsner6 lb Pilsner	38	1.6	40%
5 lb	American - Pale 2-Row5 lb Pale 2-Row	37	1.8	33.3%
2 lb	German - Vienna2 lb Vienna	37	4	13.3%
1 lb	American - White Wheat1 lb White Wheat	40	2.8	6.7%
1 lb	Cane Sugar1 lb Cane Sugar - (late addition)	46	0	6.7%
15 lb	Total

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
0.25 oz	Warrior0.25 oz Warrior Hops	Pellet	16.5	Boil	60 min	14.65	2.2%
1 oz	El Dorado1 oz El Dorado Hops	Pellet	15.3	Boil	5 min	8.82	8.9%
1 oz	Galaxy1 oz Galaxy Hops	Pellet	13	Boil	5 min	7.49	8.9%
1 oz	Zythos1 oz Zythos Hops	Pellet	9.7	Boil	5 min	5.59	8.9%
1 oz	El Dorado1 oz El Dorado Hops	Pellet	15.3	Whirlpool at 190 °F	0 min	8.82	8.9%
1 oz	Galaxy1 oz Galaxy Hops	Pellet	13	Whirlpool at 190 °F	0 min	7.49	8.9%
1 oz	HBC 4381 oz HBC 438 Hops	Pellet	15.7	Whirlpool at 190 °F	0 min	9.05	8.9%
1 oz	Zythos1 oz Zythos Hops	Pellet	9.7	Whirlpool at 190 °F	0 min	5.59	8.9%
1 oz	Galaxy1 oz Galaxy Hops	Pellet	13	Dry Hop	5 days		8.9%
1 oz	Zythos1 oz Zythos Hops	Pellet	9.7	Dry Hop	5 days		8.9%
1 oz	El Dorado1 oz El Dorado Hops	Pellet	15.3	Dry Hop	3 days		8.9%
1 oz	HBC 4381 oz HBC 438 Hops	Pellet	15.7	Dry Hop	3 days		8.9%

Show Summary View

Amount	Variety	IBU	Bill %
0.25 oz	Warrior0.24999999942814 oz Warrior Hops	14.65	2.2%
3 oz	El Dorado2.9999999931377 oz El Dorado Hops	8.82	26.7%
3 oz	Galaxy2.9999999931377 oz Galaxy Hops	7.49	26.7%
3 oz	Zythos2.9999999931377 oz Zythos Hops	5.59	26.7%
2 oz	HBC 4381.9999999954251 oz HBC 438 Hops	9.05	17.8%
11.25 oz	Total

Mash Guidelines

Amount	Description	Type	Temp	Time
gal		Infusion	149 °F	75 min
Starting Mash Thickness: 1.25 qt/lb

Other Ingredients

Amount	Name	Type	Use	Time
0.5 each	Whirlfloc Tablet	Fining	Boil	5 min.
0.5 tsp	Yeast Nutrient	Other	Boil	10 min.

Yeast

White Labs - San Diego Super Yeast WLP090

Amount:	1 Each
Attenuation (custom):	83%	Flocculation:	Med-High
Optimum Temp:	65 - 68 °F	Starter:	Yes
Fermentation Temp:	66 °F	Pitch Rate:	0.75 (M cells / ml / ° P) 289 B cells required

Yeast Pitch Rate and Starter Calculator

Target Water Profile

Light colored and hoppy

Ca⁺²	Mg⁺²	Na⁺	Cl^-	SO₄^-2	HCO₃^-
76	3	15	53	91	0
Mash: 2.6 g Gypsum, 1.8 g Calcium Chloride, 2.2 ml Lactic Acid. Sparge: 3.3 g Gypsum, 2.2 g Calcium Chloride, 1.7 ml Lactic Acid Target levels reached via Bru'n Water
Mash Chemistry and Brewing Water Calculator

Quick Water Requirements

Water	Gallons	Quarts
Total mash water needed	9.93	39.7
Strike water volume at mash thickness of 1.25 qt/lb	4.38	17.5
Remaining sparge water volume	5.55	22.2
Grain absorption losses	-1.75	-7
Mash Lauter Tun dead space	-0.25	-1
Amount going into kettle	7.93	31.7
Volume increase from sugar/extract (late additions)	0.07	0.3
Boil off losses	-1.5	-6
Amount in kettle at end of boil	6.5	26
Hops absorption losses	-0.27	-1.1
Estimated amount in fermentor	6.23	24.9
Total:	9.93	39.7

Notes

Cells Required for 5.5 gallons in fermentor is 245B. 1.3 liter starter creates 250B - Braukaiser. (133 grams of DME)

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Last Updated: 2016-07-02 18:36 UTC