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Double GPT

Method: All Grain
Style: Imperial IPA
Boil Time: 60 min
Batch Size: 20 liters (fermentor volume)
Pre Boil Size: 24 liters
Pre Boil Gravity: 1.070 (recipe based estimate)
Post Boil Gravity: 1.085 (recipe based estimate)
Efficiency: 70% (brew house)
Source: Good Day
Calories: 261 calories (Per 330ml)
Carbs: 23.3 g (Per 330ml)

Created: Sunday September 28th 2025

Original Gravity:

1.085

Final Gravity:

1.016

ABV (standard):

9.0%

IBU (tinseth):

120.5

SRM (morey):

8.8

Mash pH

n/a

Cost ฿

n/a

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Fermentables

Amount	Fermentable	PPG	°L	Bill %
6.43 kg	Bestmalz - BEST Pale ale6.43 kg BEST Pale ale	38.1	2.81	86.8%
0.29 kg	Thomas Fawcett - Crystal Malt I0.29 kg Crystal Malt I	34	45	3.9%
0.29 kg	Bestmalz - BEST Caramel Pils0.29 kg BEST Caramel Pils	37	2.43	3.9%
0.40 kg	Corn Sugar - Dextrose0.4 kg Corn Sugar - Dextrose	42	0.5	5.4%
7.41 kg / ฿ 0.00

Hops

Amount	Variety	Type	AA	Use	Time	IBU	Bill %
2 oz	Columbus2 oz Columbus Hops	Pellet	15	Boil	90 min	96.02	14.3%
1 oz	Centennial1 oz Centennial Hops	Pellet	10	Boil	15 min	14.85	7.1%
1 oz	Centennial1 oz Centennial Hops	Pellet	10	Whirlpool at 80 °C	15 min	4.25	7.1%
1 oz	Simcoe1 oz Simcoe Hops	Pellet	12.7	Whirlpool at 80 °C	15 min	5.4	7.1%
1 oz	Centennial1 oz Centennial Hops	Pellet	10	Dry Hop	7 days		7.1%
1 oz	Columbus1 oz Columbus Hops	Pellet	15	Dry Hop	7 days		7.1%
1 oz	Simcoe1 oz Simcoe Hops	Pellet	12.7	Dry Hop	7 days		7.1%
1 oz	Centennial1 oz Centennial Hops	Pellet	10	Dry Hop	10 days		7.1%
1 oz	Simcoe1 oz Simcoe Hops	Pellet	12.7	Dry Hop	10 days		7.1%
2 oz	Centennial2 oz Centennial Hops	Pellet	10	Dry Hop	14 days		14.3%
2 oz	Simcoe2 oz Simcoe Hops	Pellet	12.7	Dry Hop	14 days		14.3%
14 oz / ฿ 0.00

Show Summary View

Amount	Variety	IBU	Bill %
3 oz	Columbus (Pellet)	96.02	21.4%
6 oz	Centennial (Pellet)	19.1	42.7%
5 oz	Simcoe (Pellet)	5.4	35.6%
14 oz / ฿ 0.00

Mash Guidelines

Amount	Type	Start Temp	Target Temp	Time
19.628 L	Strike	69 °C	65 °C	90 min
10.67 L	Sparge	76 °C	76 °C	15 min
Starting Mash Thickness: 2.8 L/kg Starting Grain Temp: 28 °C

Other Ingredients

Amount	Name	Type	Use	Time
2.50 g	Calcium Chloride (dihydrate)	Water Agt	Mash	1 hr.
8 g	Gypsum	Water Agt	Mash	1 hr.
1 g	Salt	Water Agt	Mash	1 hr.
2.36 ml	Phosphoric acid	Water Agt	Mash	1 hr.

Yeast

White Labs - California Ale Yeast WLP001

Amount:	2 Each	Cost:
Attenuation (avg):	76.5%	Flocculation:	Medium
Optimum Temp:	20 - 23 °C	Starter:	No
Fermentation Temp:	-	Pitch Rate:	0.35 (M cells / ml / ° P) 143 B cells required

฿ 0.00 Yeast Pitch Rate and Starter Calculator

Priming

CO₂ Level: 1.9 Volumes

Target Water Profile

Light colored and hoppy

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

Last Updated and Sharing

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Brews

Public: Yup, Shared
Last Updated: 2025-09-28 06:53 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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