Kosher food - It is a specific food which does not have any prohibited ingredients like pork or shellfish in meat or mixtures like dairy and meat together. Unprocessed fruits and vegetables are always considered Kosher. On other side processed foods are considered Kosher if their production process has been supervised to make sure they have no forbidden ingredients or mixtures. According to Kosher law the food is divided in four category and all types of food has different norms from the preparation to final stage. Meat, dairy product, pareve and other foods are the main four varieties of foodstuff and all food items under these category must follow Kosher standard to be Kosher certified.