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Old 04-28-2009, 01:34 AM   #1
michael.berta
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Default Why does my IPA taste like grapefruit??

I brewed an IPA on 4/4 and tasted a small sample. It tastes like grapefruit and there is little to no bitterness. This is the recipe for a 10 gallon batch:

Grain:
25# American 2-Row
1# Crystal 40
.5# Crystal 60
.25# Crystal 80
.25# Crystal 120

Hops:

2oz Magnum 60 minutes
2oz Simcoe continuously hopped from 30 minutes to knockout. Approx 13 pellets per minute
2oz Cascade Dry Hop 2 weeks.

Yeast:
Nottingham per 5 gallon batch

OG: 1.067

I'm thinking the Simcoe might be the reason for the grapefruit but why no bitterness? This recipe was about 70 IBUs if I remember correctly. 2oz of Magnum should produce some bitterness. Is it possible that the Simcoe is basically covering up the taste of the bittering hops? Or is it just green beer in which the bitterness will come out in a month or two?

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Old 04-28-2009, 01:40 AM   #2
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It will be a different beer in a month. You only brewed it less than a month ago and it will change with time. As far as the grapefruit is concerned, that's definitely the hops, which will also mellow with time. What was your FG?

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Old 04-28-2009, 02:29 AM   #3
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2 ounces of hops for 10 gallons of beer? That's not a lot of IBUs. Something like 50ish? I don't think you have a high perception of hops because that's not that high compared to the amount of beer you made and the gravity.

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Old 04-28-2009, 02:34 AM   #4
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Quote:
Originally Posted by carnevoodoo View Post
2 ounces of hops for 10 gallons of beer? That's not a lot of IBUs. Something like 50ish? I don't think you have a high perception of hops because that's not that high compared to the amount of beer you made and the gravity.
More like six ounces and magnum is some pretty strong stuff, though i don't know all the math to calculate the IBUs
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Old 04-28-2009, 04:54 AM   #5
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i can tell you from experience, your recipe is very similar to one of my favorite microbrews, they get a very flowery/grapefruit flavor by long dry hopping with cascade, as for the lack of bittering, i have no clue

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Old 04-28-2009, 07:04 AM   #6
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According to beersmith (a quick and dirty version of this recipe) you should have plenty of IBUs if the magnum were %14. Is it possible that they were very old, like an '06 crop, and they have lost quite a bit of their AA? At any rate, let it age and see what happens. You can always call it a pale ale.

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Old 04-28-2009, 08:40 AM   #7
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Here is what I got out of BeerSmith( after 20 min of adding hop additions)
looks to be fairly sound by the style guidelines. and the grapefruit flavor will fade after a while, I use simcoe in an IPA that I brew, good stuff, but oyu have to let it age a bit.

Your dry hop choice will also lead to a strong grapefruit nose that could confuse your tastebuds as well

are you useing ane brewing software?

here is what BeerSmith shows, I ahve also attached the recipe file for BeerSmith and a text file if you don't have Beersmith

-Jason

Type: All Grain
Batch Size: 10.00 gal

Boil Size: 11.45 gal
Boil Time: 60 min
Brewhouse Efficiency: 69.00
Ingredients

Amount Item Type % or IBU
25 lbsPale Malt (2 Row) US (2.0 SRM)Grain92.59 %
1 lbsCaramel/Crystal Malt - 40L (40.0 SRM)Grain3.70 %
8.0 ozCaramel/Crystal Malt - 60L (60.0 SRM)Grain1.85 %
4.0 ozCaramel/Crystal Malt - 80L (80.0 SRM)Grain0.93 %
4.0 ozCaramel/Crystal Malt -120L (120.0 SRM)Grain0.93 %
2.00 ozMagnum [14.00 %] (60 min)Hops44.5 IBU
2.00 ozCascade [5.50 %] (Dry Hop 14 days)Hops-
0.07 ozSimcoe [13.00 %] (30 min)Hops1.1 IBU
0.07 ozSimcoe [13.00 %] (29 min)Hops1.1 IBU
0.07 ozSimcoe [13.00 %] (28 min)Hops1.1 IBU
0.07 ozSimcoe [13.00 %] (27 min)Hops1.1 IBU
0.07 ozSimcoe [13.00 %] (26 min)Hops1.0 IBU
0.07 ozSimcoe [13.00 %] (25 min)Hops1.0 IBU
0.07 ozSimcoe [13.00 %] (24 min)Hops1.0 IBU
0.07 ozSimcoe [13.00 %] (23 min)Hops1.0 IBU
0.07 ozSimcoe [13.00 %] (22 min)Hops0.9 IBU
0.07 ozSimcoe [13.00 %] (21 min)Hops0.9 IBU
0.07 ozSimcoe [13.00 %] (20 min)Hops0.9 IBU
0.06 ozSimcoe [13.00 %] (19 min)Hops0.7 IBU
0.07 ozSimcoe [13.00 %] (18 min)Hops0.8 IBU
0.06 ozSimcoe [13.00 %] (17 min)Hops0.7 IBU
0.07 ozSimcoe [13.00 %] (16 min)Hops0.8 IBU
0.06 ozSimcoe [13.00 %] (15 min)Hops0.6 IBU
0.07 ozSimcoe [13.00 %] (14 min)Hops0.7 IBU
0.06 ozSimcoe [13.00 %] (13 min)Hops0.6 IBU
0.07 ozSimcoe [13.00 %] (12 min)Hops0.6 IBU
0.06 ozSimcoe [13.00 %] (11 min)Hops0.5 IBU
0.07 ozSimcoe [13.00 %] (10 min)Hops0.5 IBU
0.06 ozSimcoe [13.00 %] (9 min)Hops0.4 IBU
0.07 ozSimcoe [13.00 %] (8 min)Hops0.4 IBU
0.06 ozSimcoe [13.00 %] (7 min)Hops0.3 IBU
0.07 ozSimcoe [13.00 %] (6 min)Hops0.3 IBU
0.06 ozSimcoe [13.00 %] (5 min)Hops0.2 IBU
0.07 ozSimcoe [13.00 %] (4 min)Hops0.2 IBU
0.06 ozSimcoe [13.00 %] (3 min)Hops0.2 IBU
0.07 ozSimcoe [13.00 %] (2 min)Hops0.1 IBU
0.06 ozSimcoe [13.00 %] (1 min)Hops0.1 IBU
2 PkgsNottingham (Danstar #-)Yeast-Ale

Beer Profile



Measured Original Gravity: 1.067 SG
Est Final Gravity: 1.016
Actual Alcohol by Vol: 6.53 %
Bitterness: 64.3 IBU
Calories: 304 cal/pint
Est Color: 10.4 SRM Color: Color
Mash Profile


Mash Name: Single Infusion, Full Body
Total Grain Weight: 27.00 lb
Sparge Water: 2.88 gal
Grain Temperature: 72.0 F
Sparge Temperature: 168.0 F
TunTemperature: 72.0 F
Adjust Temp for Equipment: FALSE
Mash PH: 5.4 PH
Single Infusion, Full Body
Step Time Name Description Step Temp
45 min Mash In Add 33.75 qt of water at 170.5 F 158.0 F
10 min Mash Out Add 13.50 qt of water at 196.6 F 168.0 F


Mash Notes: Simple single infusion mash for use with most modern well modified grains (about 95% of the time).
File Type: txt recipes.txt (4.1 KB, 38 views)
File Type: bsm recipes.bsm (30.8 KB, 22 views)
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Old 04-28-2009, 09:12 AM   #8
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Remember that those are calculated IBUs and without specific testing, we can not be assured that we're hitting those levels. Age of hops, and a variety of factors make a difference.

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Old 04-29-2009, 08:39 PM   #9
michael.berta
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Thanks to everyone for the thoughtful responses. For my recipes I use Beer Calculus . homebrew recipe calculator. My gravity right now is about 1.014. The OG was 1.067 and the IBUs were 82 Tinseth. I'm not sure how old the hops were or potential loss of IBUs in aging. I will have to check with my LHBS. I think I'll just let them sit for at least a month before drinking and hope it settles out a little.

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Old 04-29-2009, 08:57 PM   #10
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Or perhaps acquire a taste for the grapefruit.
Many folks like the American IPA's specifically for the Pacific Northwest hops you have listed - (many are citrusy). Cascade is most prominently grapefruit-citrusy.

If it's too strongly grapefruit for you, try dry hopping with something else next time. Most online suppliers will list the profile of the hops so you can pick something more to your liking (and you can ship me what you've brewed!)

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