Russian River Hopfather Double IPA clone

[resin]

Hi Guys, just need a more experienced brewer to cast their eye over this recipe.

It's taken from the book 'Extreme Brewing' by the dogfish head guys. The recipe in the book says I should be hitting
SG1.066 to 1.069 with a target of 7 to 7.5% and 100 IBU's

but beersmith is predicting 137IBU's at 7.8% 1.077SG which seems a bit off. What have i done wrong? should i just bring the dry malt and bittering hops down a touch ?


Recipe from book (warning there seems to be a lot of mistakes in some of the US -> metric conversions, assuming US is the correct measurement):





[SIZE=16pt]HOPFATHER DOUBLE [/SIZE][SIZE=15pt]IPA [/SIZE]













[SIZE=9pt]H[/SIZE][SIZE=9pt]e[/SIZE][SIZE=9pt]at t[/SIZE][SIZE=9pt]o [/SIZE][SIZE=9pt]150 F [/SIZE][SIZE=9pt]([/SIZE][SIZE=9pt]66[/SIZE][SIZE=9pt]°[/SIZE][SIZE=9pt]C) [/SIZE][SIZE=9pt]6 gallons (233 [/SIZE][SIZE=8pt]L) [/SIZE]
[SIZE=10pt]St[/SIZE][SIZE=10pt]ee[/SIZE][SIZE=10pt]p[/SIZE]
[SIZE=9pt]1 [/SIZE][SIZE=9pt]pound (0.5 kg) cracked crystal [/SIZE][SIZE=9pt]15-20 [/SIZE]
[SIZE=8pt]Lovibond malt [/SIZE][SIZE=8pt]([/SIZE][SIZE=8pt]15 [/SIZE][SIZE=7pt]m[/SIZE][SIZE=7pt]il/Ill[/SIZE][SIZE=7pt]es)[/SIZE]
[SIZE=8pt]10 [/SIZE][SIZE=8pt]pounds (3 kg) light [/SIZE][SIZE=9pt]dry [/SIZE][SIZE=8pt]malt extract [/SIZE]
[SIZE=9pt]([/SIZE][SIZE=9pt]90 [/SIZE][SIZE=8pt]minH/[/SIZE][SIZE=8pt]cr) [/SIZE]
[SIZE=9pt]1 [/SIZE][SIZE=10pt]ounce [/SIZE][SIZE=9pt](28 [/SIZE][SIZE=8pt]g) [/SIZE][SIZE=9pt]Magnum [/SIZE][SIZE=9pt]hops [/SIZE][SIZE=9pt]([/SIZE][SIZE=9pt]90 [/SIZE][SIZE=8pt]mi[/SIZE][SIZE=7pt]l/[/SIZE][SIZE=8pt]mr[/SIZE][SIZE=8pt]s) [/SIZE]
[SIZE=9pt]1'[/SIZE][SIZE=8pt]/2 [/SIZE][SIZE=8pt]ounces (43 g) Columbus hops [/SIZE][SIZE=9pt]([/SIZE][SIZE=9pt]90 [/SIZE][SIZE=7pt]mim[/SIZE][SIZE=7pt]I[/SIZE][SIZE=7pt]it's[/SIZE][SIZE=7pt]) [/SIZE]
[SIZE=9pt]1'[/SIZE][SIZE=8pt]/[/SIZE][SIZE=8pt]2 ounces (43 g) Columbus hops [/SIZE][SIZE=9pt]([/SIZE][SIZE=9pt]30 [/SIZE][SIZE=7pt]I[/SIZE][SIZE=7pt]/limm[/SIZE][SIZE=7pt]'s) [/SIZE]
[SIZE=8pt]3 [/SIZE][SIZE=8pt]' [/SIZE][SIZE=9pt]/2 [/SIZE][SIZE=8pt]ounces ([/SIZE][SIZE=8pt]1[/SIZE][SIZE=9pt]00 [/SIZE][SIZE=8pt]g) Columbus hops [/SIZE][SIZE=9pt]([/SIZE][SIZE=9pt]Em/ [/SIZE][SIZE=7pt]r:[/SIZE][SIZE=9pt]( [/SIZE][SIZE=9pt]boil[/SIZE][SIZE=9pt]) [/SIZE]
[SIZE=9pt]1'[/SIZE][SIZE=8pt]/[/SIZE][SIZE=8pt]2 ounces (50 [/SIZE][SIZE=8pt]g) [/SIZE][SIZE=8pt]Willametle hops [/SIZE][SIZE=8pt]([/SIZE][SIZE=8pt]E[/SIZE][SIZE=8pt]u[/SIZE][SIZE=8pt]d ofboil[/SIZE][SIZE=8pt]) [/SIZE]
[SIZE=9pt]Ferm[/SIZE][SIZE=9pt]e[/SIZE][SIZE=9pt]nt[/SIZE][SIZE=9pt]a[/SIZE][SIZE=9pt]tion[/SIZE]
[SIZE=8pt]Yeast: [/SIZE][SIZE=8pt]White LabsWLPOOl California Ale [/SIZE]
[SIZE=8pt]Yeast [/SIZE][SIZE=8pt]or [/SIZE][SIZE=8pt]Wyeast [/SIZE][SIZE=8pt]Ch[/SIZE][SIZE=8pt]i[/SIZE][SIZE=8pt]co [/SIZE][SIZE=8pt]1[/SIZE][SIZE=9pt]056 [/SIZE][SIZE=8pt]Ale [/SIZE][SIZE=8pt]Yeast [/SIZE][SIZE=9pt]'/2 [/SIZE][SIZE=8pt]ounces [/SIZE][SIZE=9pt](15 [/SIZE][SIZE=8pt]g) [/SIZE][SIZE=9pt]Columbus hops [/SIZE]
[SIZE=9pt]([/SIZE][SIZE=9pt]0 [/SIZE][SIZE=7pt]11)' [/SIZE][SIZE=9pt]3 [/SIZE][SIZE=7pt]/[/SIZE][SIZE=7pt]0 [/SIZE][SIZE=8pt]5[/SIZE][SIZE=8pt])[/SIZE]
[SIZE=9pt]'/2 [/SIZE][SIZE=8pt]ounce (7 [/SIZE][SIZE=8pt]g) [/SIZE][SIZE=8pt]Chinook hops [/SIZE][SIZE=9pt]([/SIZE][SIZE=9pt]O[/SIZE][SIZE=9pt]"y [/SIZE][SIZE=9pt]J [/SIZE][SIZE=8pt]If) [/SIZE][SIZE=9pt]5[/SIZE][SIZE=9pt]) [/SIZE][SIZE=9pt]'/2 [/SIZE][SIZE=8pt]ounce [/SIZE][SIZE=9pt](7 [/SIZE][SIZE=8pt]g) [/SIZE][SIZE=9pt]Amarillo [/SIZE][SIZE=9pt]hops [/SIZE][SIZE=9pt]([/SIZE][SIZE=9pt]O[/SIZE][SIZE=8pt]ilY [/SIZE][SIZE=9pt]3 [/SIZE][SIZE=7pt]10 [/SIZE][SIZE=9pt]5[/SIZE][SIZE=9pt]) [/SIZE][SIZE=8pt]112 ounce [/SIZE][SIZE=9pt]([/SIZE][SIZE=8pt]21 [/SIZE][SIZE=9pt]g) Chinook hops [/SIZE][SIZE=8pt]([/SIZE][SIZE=8pt]O[/SIZE][SIZE=8pt]ilY [/SIZE][SIZE=8pt]7) [/SIZE][SIZE=9pt]B[/SIZE][SIZE=9pt]ott[/SIZE][SIZE=9pt]ling[/SIZE]
[SIZE=8pt]5 [/SIZE][SIZE=8pt]ounces (125 [/SIZE][SIZE=8pt]g) [/SIZE][SIZE=8pt]priming sugar [/SIZE]
[SIZE=7pt]STARTING [/SIZE][SIZE=8pt]GRAVJn': 1.066 [/SIZE][SIZE=9pt]to [/SIZE][SIZE=8pt]1.069 [/SIZE][SIZE=7pt]FINAL [/SIZE][SIZE=7pt]GRA[/SIZE][SIZE=7pt]VITY[/SIZE][SIZE=7pt]: [/SIZE][SIZE=9pt]1.012 [/SIZE][SIZE=9pt]to [/SIZE][SIZE=9pt]1[/SIZE][SIZE=9pt].[/SIZE][SIZE=9pt]014 [/SIZE][SIZE=7pt]FINAL [/SIZE][SIZE=7pt]T[/SIZE][SIZE=7pt]ARGET [/SIZE][SIZE=9pt]ABV: [/SIZE][SIZE=7pt]7 [/SIZE][SIZE=9pt]to [/SIZE][SIZE=7pt]7.5[/SIZE][SIZE=7pt]% [/SIZE][SIZE=9pt]I[/SIZE][SIZE=9pt]BUs: [/SIZE][SIZE=9pt]100 [/SIZE]






Recipe added to beer smith.
Style: Imperial IPA
TYPE: Partial Mash
Taste: (30.0)

Recipe Specifications
--------------------------
Boil Size: 9.42 gal
Post Boil Volume: 7.29 gal
Batch Size (fermenter): 6.00 gal
Bottling Volume: 5.55 gal
Estimated OG: 1.077 SG
Estimated Color: 12.4 SRM
Estimated IBU: 135.7 IBUs
Brewhouse Efficiency: 70.00 %
Est Mash Efficiency: 297.9 %
Boil Time: 90 Minutes

Ingredients:
------------
Amt Name Type # %/IBU
6.00 gal Wollongong, Australia Water 1 -
1 lbs Caramel/Crystal Malt - 80L (73.6 SRM) Grain 2 9.1 %
10 lbs Light Dry Extract (8.0 SRM) Dry Extract 3 90.9 %
1.50 oz Columbus (Tomahawk) [14.00 %] - Boil 90. Hop 4 56.9 IBUs
1.00 oz Magnum [14.00 %] - Boil 90.0 min Hop 5 37.9 IBUs
1.50 oz Columbus (Tomahawk) [14.00 %] - Boil 30. Hop 6 40.9 IBUs
3.50 oz Columbus (Tomahawk) [14.00 %] - Boil 0.0 Hop 7 0.0 IBUs
1.50 oz Willamette [5.50 %] - Boil 0.0 min Hop 8 0.0 IBUs
1.0 pkg Safale American (DCL/Fermentis #US-05) Yeast 9 -
0.50 oz Amarillo Gold [8.50 %] - Dry Hop 10.0 Da Hop 10 0.0 IBUs
0.50 oz Chinook [13.00 %] - Dry Hop 10.0 Days Hop 11 0.0 IBUs
0.50 oz Columbus (Tomahawk) [14.00 %] - Dry Hop Hop 12 0.0 IBUs
0.50 oz Chinook [13.00 %] - Dry Hop 5.0 Days Hop 13 0.0 IBUs


also another quick question, think it would be acceptible to replace Magnum with Galaxy for bittering?

 

[huez]

Your IBUs could be off because of the formula being used by beersmith, you're not going to notice any difference being that bitter anyway. I think they say 100ibus is the limit of what you can taste also. Stick with magnum, galaxy is harsh as a bittering hop.

Also your efficiency could be set differently to the recipe which is why your OG could be higher, or its just an ingredients thing in beersmith.

 

[Dan Pratt]

I just checked the website for russian river and they say it has Northern Brewer for bittering and Amarillo and centennial dry hopped......so not sure that recipe you have found will make the beer your titled the thread for.

 

[resin]

thanks for the replies guys, much appreciated.
I know the current commercial recipe is different from the one given in the book, i just want a nice hoppy double IPA and this sounds like the ticket. The book recipe is straight from Vinnie at Russian River so i know its going to be decent.

in regards to magnum, couldnt get any at my local supplier, i was worried about using galaxy for bittering as i had heard that, but ive also heard it doesn't matter what you use for bittering so was a bit confused.

in lieu of magnum, would either more columbus or centennial work in it's place?

 

[Dan Pratt]

if your looking for a sub on magnum this website has some handy info.

http://beerlegends.com/magnum-hops