Preventing Potatoes from Turning Green
Of course, the best way to prevent green potatoes and therefore also the potential development of solanine is to store them properly. Proper storage in a cool, dark place is essential to prevent potatoes from turning green. Again, this is because exposure to light and improper temperatures can stimulate the production of solanine. Potatoes need to be kept in cool, dry, dark spaces. Too warm will cause them to spoil, as will too much moisture, and the sun will cause them to go green.