Preservatives allow products such as soft drinks to have a
longer shelf life by slowing or stopping the growth of
micro-organisms (yeasts, moulds and bacteria).
Not all soft drinks contain preservatives, the need for a
preservative depends on the type of product and the processing
Fruit juices can be heat treated or aseptically filled
so they dont require preservatives.
Bottled waters are hygienically filled and do not contain enough
nutrients to allow micro-organisms to grow.
Soft drinks containing fruit juice and sugar typically need
preservatives to prevent microbiological spoilage.
There are only four preservatives currently used by the soft