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Published 20 hours ago • verified publisher icon danielgtaylor

IBU calculation off

Open ibrewaletx opened this issue 12 years ago • 1 comments

Noticed when importing a recipe that a 45 minute addition of 5% Willamette hops in a 3 gallon batch only showed 9 IBU's instead of ~17.
http://www.malt.io/users/jlkeeney/recipes/mildly-mild

ibrewaletx avatar May 05 '13 13:05 ibrewaletx

How are you calculating 17 IBU? Malt.io uses the Tinseth formula and takes into account hop form, average boil volume, boil duration, alpha acid percentage and sugar content in the boil. The formula in use is listed on this page: http://www.malt.io/homebrew-formulas

Brauhaus.js, a component of the next version of the Malt.io recipe calculator, will allow you to choose multiple formulas as a property of the recipe. Right now Tinseth and Rager are implemented, with the option of adding more in the future. I'd be curious to know what formula you used originally and whether this is a common one that should be supported.

danielgtaylor avatar May 05 '13 21:05 danielgtaylor