How to preserve potatoes for long time?

The suitable storage temperature for potato cold storage is 3-6℃, and it is necessary to ensure that the temperature in the warehouse is stable, neither too high nor too low. If the temperature is below 0℃, frozen damage will occur, and at the same time, amylase hydrolase in potatoes will be activity, and the respiration intensity will also increased. If the temperature is too high, it will also cause potatoes to sprout and deteriorated. The relative humidity should be controlled about 85%-90%, because when the air humidity is insufficient or dry, the skin of the potato will be wrinkle, causing a large number of potatoes spoiled.