Potato is a product that produces heat by respiration and is dehydrated by evaporation. As it is harvested, it begins aging. Storage losses are caused by respiration, sprouting, evaporation of water, the spread of diseases, and changes in chemical composition and physical properties. Storage is used to delay this process as much as possible and to keep potatoes in their most edible and marketable condition throughout the year. Damage by extreme temperatures can be controlled by maintaining favorable conditions in the store, with proper ventilation and appropriate storage conditions. Good storage can significantly prevent losses over relatively long periods.