Food processing is defined as the collection of techniques and methods that is used to transform raw material into food for consumption by humans. Basically it is the method of alteration of food into another form using different preservation and packaging techniques. Food processing includes the methods and techniques used to transform raw ingredients into food for human consumption. This may involve a combination of processes like washing; chopping, fermenting, packaging, cooking pasteurizing etc. food processing also involves addition of substances for the extension of shelf life.