Potato growers cut the extra branches 15 days before harvesting. because of this, the potatoes are hardened and do not rot during cold storage. Harvesting is done in morning when the temperature is low, because of the high temperature, potatoes are more likely to rot. Farmers usually collect the potatoes in a pile after harvesting due to which the air does not pass through and the potatoes not only rotted but also become dry and deformed due to high temperature. Farmers should apply a duct for air passage inside the pile. Turn off the duct in the morning so that warm air does not pass through and open at night so that cool air can pass through.