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06-02-2008, 12:03 PM
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#1
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Senior Member
Join Date: Oct 2007
Location: South Florida
Posts: 1,360
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Hop Utilization + Late-Extract Addition
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Does anyone have a formula to tell you how much added utilization you get from doing a late-extract addition and a full boil?
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Primary: Nothing
Secondary: DFH Punkin Ale
Bottled/Conditioning: Cigar City Jai Alai IPA Clone, Apple Jack 1.0, Apple Jack 2.0
Drinking: Yakima Blonde (Imperialized), Banana Wheat, Russian Imperial Stout, and anything i can get my hands on
On Deck: Watermelon Wheat, Red Panda Ale, Gluten Free Brown Ale, Mojito IPA, Smoked Pepper Stout
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06-02-2008, 02:29 PM
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#2
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Cranky Old Guy
Join Date: Oct 2005
Location: Willamina & Oak Grove, Oregon, USA
Posts: 24,799
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You best bet is to use a brewing program. Run the calculation with & without the extract.
http://hbd.org/cgi-bin/recipator/recipator
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Remember one unassailable statistic, as explained by the late, great George Carlin: "Just think of how stupid the average person is, and then realize half of them are even stupider!"
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06-02-2008, 03:06 PM
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#3
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Senior Member
Join Date: Jan 2008
Location: Kansas City, MO
Posts: 416
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Beersmith works really well for this and they have a free trial. Not to mention it is just a great program.
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06-02-2008, 03:21 PM
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#4
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Senior Member
Join Date: Aug 2006
Location: Piscataway, NJ
Posts: 19,419
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One of the cool things with Beertoolspro (not sure if others do this) but you can add an ingredient line item and "uncheck" it from inclusion without removing it completely. For example...
X 3lbs light DME
_ 3lbs light DME
So that's like a total of 6 pounds but the IBUs that show up when half of the extract has been added late will increase.
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06-08-2008, 03:46 AM
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#5
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Member
Join Date: Apr 2008
Location: Spokane, WA
Posts: 78
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+1 for beersmith
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06-08-2008, 05:44 AM
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#6
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Senior Member
Join Date: Feb 2005
Location: Atkinson (near the Quad Cities), IL
Posts: 17,955
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Check out the hop utilization chart in Papazian's TCJOHB.
He basically recommends 1 lb of malt per 1 gal of water to achieve a 1.040 gravity.
Hop utilization is really dependent upon the gravity of the boiled wort. By not having the proper gravity you can under/over hop.
It's this reason that I boil 1.5 gals (the extra .5 gal is for boil off) and only 1 lb of malt for 45 mins. Then I remove the pot from the heat and add the remaining malts and steep for 15 mins. 
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HB Bill
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