IBU contribution of kettle hops after flameout

As usual I keep hops in the kettle after flameout; but I wanted to give myself a better feeling about how much bitterness they would contribute.

Yesterday I turned the heat off and proceed to start draining/chilling directly. It took about 10 mins, and during that time the temperature dropped from 100C to 90C. If my math is correct (see the python code below), then the hops would have a 35% (relative) utilization. The BeerSmith default is 50% so I’m glad I did this analysis to help my future recips.

Please feel free to use or modify this code. If anyone notices any mistakes or has suggestions, please let me know 🙂

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