Purple potatoes usually need to be steamed for about 20-30 minutes.

Purple potatoes, depending on the actual size, usually need to be steamed for 20 to 30 minutes. When you can't tell with the naked eye, you can poke it with chopsticks, and if you can penetrate it, it means that the purple potatoes are already cooked.

Purple potatoes are rich in nutrients, containing a large number of minerals, amino acids, vitamins and anthocyanins, purple potatoes are best not eaten raw, be sure to steam after eating.

Purple potatoes are rich in dietary fiber, starch, vitamins, trace elements (selenium, iron, calcium, potassium, etc.) and anthocyanosides, glycoproteins, carotenoids, dehydroepiandrosterone (steroid) ketone and a variety of other functional factors, with antioxidant, antitumor, memory enhancement, prevention of high blood pressure, repair of the heart muscle, reduce liver dysfunction, enhance the immune system and other functions.

Purple potatoes contain protein starch, pectin cellulose, amino acids, vitamins and a variety of minerals, but also rich in selenium and anthocyanins, purple potatoes are rich in nutrients, has a special health care function, which the protein amino acids are easy to be digested and absorbed by the body, contains vitamin A can improve eyesight and the skin's mucous epithelial cells.

Anthocyanin is a natural strong free radical scavenger, purple potatoes can be supplemented with rich amino acids and minerals, for the promotion of digestion and absorption is good, but also has a certain role of beauty and skin care. There is also a certain prevention of cancer and heart disease, and a certain anti-inflammatory effect.