Difference between Unpasteurised and Unpasteurized

What is the difference between Unpasteurised and Unpasteurized?

Unpasteurised as an adjective is relating to perishible food which has not been pasteurised, i.e. heat treatment to destroy heat sensitive vegetative cells followed by immediate cooling to limit growth of the surviving cells and germination of spores. while Unpasteurized as an adjective is relating to perishible food which has not been pasteurised. i.e. heat treatment to destroy heat sensitive vegetative cells followed by immediate cooling to limit growth of the surviving cells and germination of spores.

We hope you now know whether to use Unpasteurised or Unpasteurized in your sentence.