Help with a Partial Mash using Mr Beer Am Porter Refill

[brewcrew920]

I received 2 Mr Beer American Porter Refills for Christmas.

I plan on brewing one of the Refills as is with S-04. The other Refill I was thinking about doing a partial mash and was looking for some input.

I have the following ingredients available for the Partial Mash:
-3lbs of 2-Row
-0.25lbs of Crystal 80L
-0.25lbs of UK Dark Patent
-1oz of Centennial
-1oz of Willamette
-Yeast = S-04

I planned on Mashing at 155 for 60min followed by a 60min Boil.

60 Min - 0.75oz Cent.
20 Min - 0.75oz Willamette
Flameout - 0.25oz Willamette

The target volume will be for a 2 gallon Batch as I will be fermenting in the Mr Beer Keg at 65.

How much malt should I use for a 2 gallon partial mash?

Opinions on the Hop Schedule? The MrB Am Porter Extract is already hopped.

Thanks for the help!

 

[chickypad]

Hard to advise without knowing what you are starting with and what you want to target. Do you have the specs on the kit - OG, IBU, etc.? Do you have an idea what you want to target as far as ABV, bittering? What you have there is going to be way over bittered, I can tell you that. In a 2 gal batch .75 oz of relatively high AA hops at 60 and another .75 oz at 20 is going to get you IBU's up in DIPA range I think. That's even without the already pre-hopped extract.