Store in a cold, damp place between 32 and 40 degrees Fahrenheit. An extra refrigerator in the house is an excellent place for carrot storage. Beets, kohlrabi and winter radishes can be stored in the same way. Onions must be mature and thoroughly dry to keep well in storage. Store them in a dry, well-ventilated place such as an attic or unheated room.
Fill crates and bags only half full.
Do not store onions in the cellar. Potatoes to be stored require special handling at harvest. Dig potatoes carefully and remove them promptly from the garden to prevent sun and wind damage. If late blight is present, delay digging until potato vines are dead and dry. Store only potatoes free of serious cuts and bruises.