Bitterness calculation

Physics, chemistry and biology of brewing. The causes and the effects.

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Bitterness calculation

Postby russguill » Sat Sep 06, 2008 11:45 am

Maybe I'm remembering things wrong, but isn't the bitterness of your beer affected by the amount of malt in my grist? So if I were to go from having 10 lbs of pale malt to 15 lbs, shouldn't I see my bitterness go down?
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bitterness calculation

Postby slothrob » Sat Sep 06, 2008 1:49 pm

Yes, the bitterness will go down with a higher gravity.
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Postby russguill » Sat Sep 06, 2008 3:33 pm

That's what I was thinking. I had to choose a different Utilization setting in BTP to make that happen when I was formulating a recipe.

In researching this, I found that there are different utilization calculations. Some take gravity into consideration; others don't.
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algorithms

Postby slothrob » Sat Sep 06, 2008 10:31 pm

Yeah, the algorithms can be a little difficult to choose since most of us don't know the actual IBU's of our beer. I choose to use the Tinseth algorithm and include the gravity correction for full volume boils, and that seems to get me close.
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Postby jawbox » Sun Sep 07, 2008 9:42 am

stick with one after a few brews you'll know what to expect. I use tinseth for full wort boils.
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