Calculator for determining the Decimal Reduction Time (D) at a specified temperature knowing the D value at a given temperature and the Z-value

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Calculator for determining the Decimal Reduction Time (D) for a microorganism at a specified temperature knowing the D-value at a given temperature and the Z-value

Decimal Reduction Time (D) for a microorganism at a specified temperature
Temperature 1 e.g. (72°C)
D value (seconds) at temperature 1
Z value (°C)
Temperature 2 (°C)e.g. (82°C)
D value (seconds) at temperature 2	0

NOTE! The science and mathematics behind this calculator are described in the modeling exercise to investigate the survival of Mycobacterium avium subsp. paratuberculosis following HTST treatment of milk.

How to cite this article

Mullan, W.M.A. (2010). [On-line]. Available: Accessed:

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