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Old 01-20-2014, 04:50 PM   #1
Malty_Dog
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Default FWH value in Beersmith

Don't know if this has been asked before - when doing first wort hopping do I use the 60 minute boil option? I know I can chose FWH but it still requires a time in boil value. Only reason I ask is because somebody said to change that to 20 min, which I don't believe is correct. The total IBUs plummet down in that case.


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Old 01-20-2014, 06:16 PM   #2
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Ok, never mind. Got my answer after Googling the question and seeing the following response from a board admin named Brad at Beersmith:

"Enter the boil time - as this is the time it will be actively boiled. During the steep portion not much of the alpha acid is converted."

So I'll keep the boil time as 60 min.


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Old 01-21-2014, 02:23 AM   #3
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fyi, Brad is the lead author of Beersmith...

Cheers!
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Old 12-30-2015, 06:29 PM   #4
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Knocking the dust off this old thread.
So, I understand that BS calculates the fwh based on boil time, and this increases the total IBU count. From what I read, the bitterness perception is more mellow and balanced with fwh, so I guess what I'm looking for is an answer on IBU values after I enter fwh in BS.

Example: 0.50 oz. Sorachi Ace, 10.50%aa @FWH.
0.50 oz. Fuggle, 4.75%aa @FWH.
0.50 oz. Fuggle, 4.75%aa @30 min.
1.00 oz. Fuggle, 4.75%aa @15 min.
given recipe puts this at 36.3 IBU

When I run thru BS using the exact same values, I get 44.6 IBU.
Where do you adjust or do you? Do I decrease the 30 min and or 15 min hop additions? Leave the same or???

(for the record, the above is from azscoob cottage saison)
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Old 12-30-2015, 07:59 PM   #5
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Without knowing what model (Tinseth, Rager, or Garetz) for estimating the bitterness was used in the original recipe, I would just brew it as is.

From my experience, the bitterness is a little more mellow with fwh additions. I have heard, however, that the IBU measured is higher than what you expect given the perceived bitterness.


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