Once you’ve dug up your potatoes the best way I’ve found to store potatoes is to use a polystyrene box. A polystyrene box will keep the contents cool yet keep the frost out and the potatoes in the dark.
Fill the box with sand
Place the potatoes in the sand, but not touching each other. It’s a good idea to select the good ones and avoid storing potatoes that are damaged by slugs or cuts or bruises.
Cover the potatoes with sand and add another layer of potatoes and cover them with sand.
Close the lid to protect from vermin, frost, rain and light.
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