Beer Style: Robust Porter (12B)
Recipe Type: partial mash
Yield: 5 US gallons
The result is sweet, but very tasty. My next batch of porter will be somewhat drier, tending toward stout. Changes will include a less sweet extract (Scottish light), dropping the crystal malt altogether, bumping the bittering hops up a point, adding an ounce of Fuggles 10 minutes before the end of the boil for finish,and going to Edme yeast, which I believe to be more attenuative. I'm also toying with the idea of adding 8 ounces of wheat malt to improve the head, which is the only real defect this beer seems to have.
Mash-in (6 quarts water) at 131-122 degrees, stir 3 minutes. Adjust pH to 5.0-5.5 (using calcium carbonate or gypsum). Protein rest 131-120 degrees for 30 minutes. Starch conversion 155 degrees for 60 minutes. Mash out at 168 degrees for 5 minutes. Sparge with 2 gallons of 168-160 degree water. Bring liquid to boil and add extract and hops. Boil 60 minutes.
Source: Martin Lodahl