Apples release ethylene gas. Although ethylene can ripen many fruits, such as kiwifruit and persimmon, it can effectively inhibit the germination rate of potatoes. Therefore, when you want to store potatoes for a long time, you can really consider sealing a small amount of apples and potatoes in fresh-keeping bags and then putting them in the freezer. Low temperature environment is also helpful to delay potato germination. The ethylene released by apples can only delay the germination of potatoes, but can't completely prevent them from sprouting. Generally, potatoes can be successfully preserved by the above methods.