Food preservation is a popular option for those wanting to save money by avoiding overpriced produce in the winter months, reducing the need for pre-packaged produce, and/or maximizing their garden’s harvest. Food preservation refers to any one of a number of techniques used to prevent food from spoiling. It includes methods such as canning, pickling, dehydrating, freeze-drying, irradiation, pasteurization, smoking, and the addition of chemical additives. The various methods for preserving foods are all designed to reduce or eliminate pathogens, oxidation, or both, that spoil food.