Default cooling rate constant k for the mIBU stand model, per minute.
The wort is modelled as decaying exponentially towards ambient,
T(t) = T_ambient + (T₀ − T_ambient)·e^(−kt). At k = 0.015 a stand
starting at 80 °C is still at 64 °C after 20 minutes — about 1.2 °C/min
initially, which matches a covered ~20 L kettle left to whirlpool.
For systems that cool differently:
immersion chiller running through the stand: 0.05–0.10;
actively temperature-held whirlpool: use the fixed-temperature model,
which is the k → 0 limit of this one.
Default cooling rate constant
kfor the mIBU stand model, per minute.The wort is modelled as decaying exponentially towards ambient,
T(t) = T_ambient + (T₀ − T_ambient)·e^(−kt). Atk = 0.015a stand starting at 80 °C is still at 64 °C after 20 minutes — about 1.2 °C/min initially, which matches a covered ~20 L kettle left to whirlpool.For systems that cool differently:
fixed-temperaturemodel, which is thek → 0limit of this one.