Question

what is the need of preserving food? give short answer​

Answer 1

Preservation usually involves preventing the growth of bacteria, fungi (such as yeasts), and other microorganisms, as well as retarding the oxidation of fats which cause rancidity. A number of methods of prevention can be used that can either totally prevent, delay, or otherwise reduce food spoilage.

Answer 2

The of preserving food is to kill or inhabit the growth of harmful microorganisms.