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Module 3: Control factors for Clostridium botulinum

Section 2: Decision tree and time/temperature combinations

This section includes a decision tree that food business operators should use to determine if vacuum packed and modified atmosphere packed products stored above 3ºC can safely have a shelf-life greater than ten days. A table, giving equivalent time/temperature combinations for spores of non-proteolyric Clostridium botulinum, is also available.

Decision tree

The decision tree can help you to decide whether a shelf-life of more than ten days can be applied.

See an Adobe Acrobat (pdf) version of the decision tree in the FSA guidance to help minimise the risk of Clostridium botulinum in vacuum and modified atmosphere packed chilled foods.

Table of time/temperature combinations