Fact 1: Dehydrating food is used for preserving food.

Fact 2: Preservatives Preservatives are required to prevent spoilage.

Given the two facts above, answer the question "What can prevent food spoilage?" with the following options: 
- prolactin release
 - one celled organisms
 - hydrating food
 - cleaning food
 - airing out food
 - Electric generators
 - a hydraulic system
 - dehydrating food


 

        dehydrating food 