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Hop data: Name, weight, alpha acid percentage, boil minutes (with comma separated values):
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This calculator can take the basic values from standard recipes (weight, time, alpha acid percentage) and easily convert these to IBU percentages for use in a flex recipe.
The IBU calculations are based upon the Tinseth formula. A small improvement upon the Tinseth formula is that aroma hops (defined as less than 2 minutes of boil) are assumed to have a utilization of 5%. The IBU calculations estimate boil volume and gravity for a 15% per hour boil off rate.
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This work is licensed under a Creative Commons Attribution 4.0 International License.