When stored correctly, your potatoes should last up to eight months. However, a lot can go wrong if you’re new to the process.
Follow these guidelines for the best chance of storage success:

Keep your potatoes far away from apples and other fresh fruit, as the ethylene gas they put off can cause the potatoes to sprout or spoil.
Potatoes often develop a sweet taste during storage because they are slowly converting starches to sugars. You can prevent this from impacting your food by bringing the potatoes out of storage a few days before cooking them so that the sugar reverts to starch.
Potatoes develop green skin when exposed to light. Not only does this skin taste bitter, but it’s also toxic. Cut away any green parts before cooking.
Don’t wash the potatoes until ready to use. Otherwise, you’re putting them at risk of creating habitat space for microbes that lead to rotting.
Remove sprouts when you see them unless you plan to use them as seed potatoes.