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Simpson's F calculator spreadsheet added

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    Posted: 29 Sep 2011 at 12:21am
Readers of this forum will be aware that there has been quite a lot of discussion concerning how to calculate the cumulate lethality during thermal processing. There is a free F calculator on the site
and there is also the option of downloading an Excel spreadsheet using the trapezium or trapezoid method to calculate the area under the curve.

Interest in a more accurate method for determining the area under the lethal rate time plot has continued and I have made a new spreadsheet available for download. This has been programmed to use Simpson's rules and generally offers a significantly more accurate method for determining F values.   Fahrenheit and Celsius versions have been provided as has D, Z, and reference temperature data for major food spoilage organisms.

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