Rat Bastard Porter II - American Porter

Recipe Info
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Rat Bastard Porter II

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Extract
5.1 Gallon(s)
3.5 Gallon(s)
60 min
75%
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Based on my version of Kitty Hawk Porter from the Briess recipe database, which called for 6.6 lbs of Sparkling Amber LME and 2 lbs of Porter DME. I can't find Porter DME. My original adaptation used 3.3 lbs each of Amber & Porter LME and 1 lb each of Amber & Traditional Dark DME. Here, my adaptation gets an upgrade with 1 fewer lb of DME (eliminating the Amber) to bring the ABV into the proper range, and the addition of some steeped grains for more color and flavor.

Fermentables
% lb fermentable ppg   L   usage  
40% 3.3 Liquid Malt Extract - Amber - US 35
10°		 Extract
12% 1 Dry Malt Extract - Dark - US 44
30°		 Extract
40% 3.3 Liquid Malt Extract - Dark - US 35
17°		 Late
3% 0.225 Chocolate - UK 34
347°		 Steep
6% 0.5 Roasted Barley - UK 29
525°		 Steep
8.325 lb

Hops
oz variety type usage time AA   IBU  
1 Northern Brewer Pellet Boil 60 minutes 7.0 24.7
0.3 Goldings Pellet Boil 60 minutes 5.7 6.0
1.1 Fuggles Pellet Boil 15 minutes 4.1 7.9
2.4 oz IBUs calculated using the Tinseth formula

Hop Summary
oz variety type AA
1 Northern Brewer Pellet 7.0
0.3 Goldings Pellet 5.7
1.1 Fuggles Pellet 4.1
2.4 oz  

Yeast
name attenuation  
Fermentis Safale S-04 75%
 

Other Stuff
No Other Stuff in this Recipe

Mash Steps
No Mash Steps in this Recipe

Special Instructions
  1. Add Late Malt Addition (PORTER LME) - 20 minutes
  2. Add Wort Chiller - 15 Minutes

Recipe Facts

Rat Bastard Porter II
American Porter
5.10 Gallons Liters
3.50 Gallons Liters  @  60  min
1.056
1.014
33.3° SRM
75%
38.6 IBU (tinseth)
0.69
5.4% ABV
188 per 12oz
Beer Xml How are these calculations made?