Food is a basic need for every human being. For centuries, humankind has used the food preservation process to preserve food for future use. Conservation is the process that safeguards organic substances from decomposition. The process of preserving food has evolved over time, however they all follow the same basic concept.PRINCIPLES OF STORAGE(1)During the preservation process, food should not be damaged. There are three principles of food preservation: Removal of microorganisms: This can be done by using acids, sugar or salts, radiation, adding chemicals, smoking, changing the oxygen concentration, raising or lowering the temperature, or drying. Inactivation of enzymes: Control enzymes by increasing temperature, removing oxygen, using acids or adding chemicals.3) Removing insects, worms and rats: using protective packaging and sanitation.AWARDS WAYS OF FOOD PRESERVATION(2)In the past, In frozen climates, ice was used to preserve food. The sun's heat was also used to preserve foods by drying. Each culture used some of the following basic pr...