Chestnut potatoes. Ledoujia, founded on 20 12 and headquartered in Nanchang, is a convenience store service brand that deeply cultivates food and drinks. According to the inquiry data, Ledoujia sweet potato is chestnut potato, which is cheaper than honey potato and tastes better. Sweet potato is also called big leaf red, big leaf, plus red skin and red heart, also called big leaf red. Chestnut potato is a kind of sweet potato and a root vegetable with high nutritional value. Chestnut potato is a synthetic plant which combines the genes of chestnut itself with some experiences of sweet potato.