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Brews & Views Bulletin Board Service * Brews and Views Archive 2005 * Archive through June 27, 2005 * IPA...IBU % < Previous Next >

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Jim O'Conner
Advanced Member
Username: Roguejim

Post Number: 537
Registered: 06-2003
Posted on Thursday, June 23, 2005 - 06:58 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

If you were to brew a 1.070 IPA/AIPA (70 IBUs)with a 60 minute boil, what percent of the total IBUs would come from your 60 minute hop addition? Is there a rule of thumb?
Jim
 

Skotrat
Advanced Member
Username: Skotrat

Post Number: 765
Registered: 04-2003
Posted on Thursday, June 23, 2005 - 07:04 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Hi,

My 2 cents

30-45 IBUs for the 'bittering' hops

-Scott
 

Pete Mazurowski
Member
Username: Pete_maz

Post Number: 179
Registered: 07-2003
Posted on Thursday, June 23, 2005 - 07:15 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I've never really thought a whole lot about a standard rule. I usually start with how much flavor hops I'll be using, then figure based on that. If they contribute 20 IBU's, I know I'll need 50 more IBU's from the 60 minute addition.
 

Denny Conn
Senior Member
Username: Denny

Post Number: 4777
Registered: 01-2001
Posted on Thursday, June 23, 2005 - 07:34 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I do like Pete does. Figure out what I'm gonna get from the FWH I'll use, then fill in with the 60 min. hops.
LIfe begins at 60...1.060, that is.
 

Hophead
Senior Member
Username: Hophead

Post Number: 1568
Registered: 03-2002
Posted on Friday, June 24, 2005 - 04:21 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

I'd say about 1/2, which is in the range of what skot said. I typically also FWH and add a lot of late addition hops, probably 3X-4X the ounces of the bittering, but much lower AA so it works out to 50-50...
 

HEU Brewer
Member
Username: Heu_brewer

Post Number: 140
Registered: 01-2002
Posted on Friday, June 24, 2005 - 04:44 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

The last few I made the bittering IBUs ranged around 60-75% of the total.

Of course I dry hop and/or add hops at flame out and since they do not contribute at all or much to the IBU's the numbers may seem skewed to the high side.
 

damon
Member
Username: Nomad

Post Number: 121
Registered: 07-2004
Posted on Friday, June 24, 2005 - 08:15 pm:   Edit Post Delete Post View Post/Check IP    Ban Poster IP (Moderator/Admin only)

Here's a pain in the .... answer - I factor my hop additions on the gravity of the brew and the choice of hops.

All my IPA's have a BU:GU ratio of 1:1, so for a super crisp 1.065 beer I'd weigh up to 80% of my IBU's from the bittering portion. For a 1.095 Double IPA it will be at most 50% from the bittering addition, and then the other half from buttloads of hops at flavor additions

Also, if I'm using low co-ho hops (like Amarillo or Simcoe or Glacier), I'll make those 60 or 90 min. additions heavier because they impart a much softer bitterness. And then with Chinook I'll take that easy since its bittering, at least to me, can be a like a buzzsaw to my tongue.

Sorry for the dissertation, I just spent a day configuring a DIPA recipe for tomorrow, and dry-hopped another DIPA last night Hope it helps!