As soon as potatoes and onions are harvested, they start ageing. If they are not stored in a suitable atmosphere, they will get damaged within a few days. The best way to preserve them is to store them in a properly ventilated room with the right temperature. The best temperature to save your onion and potatoes differs. According to our experts, the best temperature to store your potatoes is between 40 to 45F. In case your species of potatoes and onions differ from the regular once available in the market, you can contact our consultants who will advise you better.