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Too much black patent?

on tuesday I made a clone of Founder’s Breakfast stout and the LHBS did not have debittered black malt, as the recipe calls for, or Weyerman carafa III to substitute. So, I went with black patent and I realize now that the beer may be very bitter. Will this beer be too bitter without extended aging, if that will even help?
Style: Imperial Stout
TYPE: All Grain
Taste: (30.0)

Recipe Specifications

Boil Size: 5.70 gal
Post Boil Volume: 5.20 gal
Batch Size (fermenter): 5.00 gal
Bottling Volume: 4.75 gal
Estimated OG: 1.079 SG
Estimated Color: 54.0 SRM
Estimated IBU: 59.4 IBUs
Brewhouse Efficiency: 65.00 %
Est Mash Efficiency: 65.0 %
Boil Time: 60 Minutes


Amt Name Type # %/IBU
13 lbs 3.2 oz Pale Malt (2 Row) US (2.0 SRM) Grain 1 76.2 %
1 lbs 6.1 oz Oats, Flaked (1.0 SRM) Grain 2 8.0 %
1 lbs Chocolate Malt (350.0 SRM) Grain 3 5.8 %
12.0 oz Roasted Barley (300.0 SRM) Grain 4 4.3 %
9.0 oz Black (Patent) Malt (500.0 SRM) Grain 5 3.2 %
7.0 oz Caramel/Crystal Malt -120L (120.0 SRM) Grain 6 2.5 %
1.00 oz Nugget [13.00 %] - Boil 60.0 min Hop 7 41.5 IBUs
0.25 oz Chinook [12.00 %] - Boil 60.0 min Hop 8 9.6 IBUs
0.62 oz Willamette [5.50 %] - Boil 30.0 min Hop 9 8.4 IBUs
0.50 oz Saaz [4.00 %] - Boil 0.0 min Hop 10 0.0 IBUs
2.50 oz Bittersweet Chocolate (Boil 0.0 mins) Spice 11 -
2.00 oz Sumatran Coffee (Boil 0.0 mins) Spice 12 -
1.50 oz Cacao Nibs (Boil 0.0 mins) Spice 13 -
1.3 pkg Safale American (DCL/Fermentis #US-05) Yeast 14 -
2.00 oz Kona Coffee (Secondary 7.0 days) Spice 15 -

It might be a little more bitter, but I don’t think it will be too noticeable in that grain bill.

Black malt isn’t as bitter as it’s cracked out to be. I’ve brewed the Black Douglas clone from this article a couple of times and it’s not bitter from the malt. ... atent-malt

yeah, I was kind of hoping that 9oz of BP in a 17# grain bill would be a small enough % that it wouldn’t be overwhelming, and once the coffee and chocolate are added, that’s a lot of flavor.
If it IS too bitter, will aging help, or should I try brewing another batch and blending? This time I’m going to order the correct malt from NB.

[rant] I was really discouraged that my LHBS didn’t have debittered or Carafa, especially since I wasn’t there myself, my wife was picking it up for me on her way home from work and I was trying to guide her over the phone while she was getting help from some employees. It seemed like they didn’t know what debittered or carafa was and when I said that the carafa was about 500 Lovibond they immediately suggested black patent [/rant]

You wanted Carafa Special, thats the dehusked low bitterness version. I’d say your roasted barley would bring more bitterness though so I wouldn’t worry about it.

If I recall right, 3% black patent in a recipe is considered well within “normal” ranges. It may not taste exactly the same in the end, but I bet it’ll be a really good beer!

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