Food preservation is known as the science which deals with the process of prevention of decay or spoilage of food thus allowing it to be stored in a fit condition for future use. Preservation ensures that the quality, edibility and the nutritive value of the food remains intact. Preservation involves preventing the growth of bacteria, fungi and other microorganisms as well as retarding oxidation of fats to reduce rancidity. The process also ensures that there is no discoloration or aging. Preservation also involves sealing to prevent re-entry of microbes.