Thermal Processing and Kinetics

In canning terminology, the 'lethal rate' ($L$) at temperature $T$ with reference temperature $T_{ref} = 121.1^\circ\text{C}$ and $z = 10^\circ\text{C}$ is given by:

Options:

• (A) $L = 10^{(T - 121.1) / z}$
• (B) $L = 10^{(121.1 - T) / z}$
• (C) $L = \frac{T - 121.1}{z}$
• (D) $L = \exp(T / 121.1)$