@beerwright/core
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    Function ragerUtilization

    • Rager utilisation as a fraction: (18.11 + 13.86 × tanh((t − 31.32) / 18.27)) / 100.

      Source: Jackie Rager, Zymurgy Special Issue 1990. It runs consistently higher than Tinseth. Rager noted that his numbers suit full-wort boils.

      Parameters

      • minutes: number

      Returns number