What's the proper way to store harvested potatoes?

Properly stored, the flavor of homegrown potatoes is retained for six months. I was doing fine until I forgot to cure my potatoes, and fifty percent of them rotted. Essential is Curing for 10 to 14 days at a temperature of 60 to 65°F. (15 to 18° C.). This thickens the skin and heals cuts and bruises. Then put them in complete darkness, with the humidity as high as can be managed. Never store potatoes in a refrigerator, as cold temperatures draw out their sugar, making them sweet.

Select dark storage areas, such as basements or root cellars. Maintain a humidity level of 90% with damp cloths or water-filled trays nearby. I make use of hygrometers to monitor the level. Avoid areas where you store apples or onions (they produce gases that cause others to sprout) or regions with poor ventilation (this can lead to condensation and rot).

Check stored potatoes every two weeks and remove any with soft spots immediately. Never store damaged tubers, as they are likely to decompose quickly. Store varieties separately, as one will usually require a different treatment than the other. Late potatoes can be stored for many weeks, but early varieties must be used up quickly.

Regulate temperature swings prompt sprouting. Insulate unheated areas in the winter and avoid using plastic bags, as they can trap moisture. For long-term storage, I personally like to stack wooden crates, leaving some air space in between. This is how I keep my potatoes for spring planting!

Read the full article: How to Grow Potatoes: Essential Gardening Guide