Complex sentence: Flash pasteurization is performed prior to filling into containers in order to kill spoilage microorganisms, to make the products safer and extend their shelf life compared to the unpasteurised foodstuff; for example one manufacturer gives the shelf life of its pasteurized milk as 12 months.
Split into simpler sentences: Flash pasteurization is performed to kill spoilage microorganisms prior to filling containers, in order to make the products safer and to extend their shelf life compared to the unpasteurised foodstuff. For example, one manufacturer gives the shelf life of its pasteurized milk as 12 months.