Generally speaking, if the purple potato is stored in a cool and ventilated place at home, it can have a shelf life of about ten days. If the purple potato is stored in the refrigerator, the shelf life can reach about one month.
Purple sweet potato contains a variety of nutrients, and like other foods, it will be moldy if it is not properly preserved. In addition, purple potato will become shriveled and shriveled due to the loss of water inside, and will grow buds after long-term storage. Although germinated purple potato can be eaten, it is easy to get moldy.