It depends.
Steaming and boiling are two different cooking methods, steaming purple potatoes can be used in a pressure cooker, rice cooker, etc., in general, it takes 15 to 20 minutes, while boiling purple potatoes is to clean purple potatoes, put them into a pot, cover the pot with a lid, and boil them over a high heat, turn to a medium-small fire and cook for about 15 minutes, if the purple potatoes are uniform in size, both take about the same time, or it may be that a pressure cooker steaming time is faster, it is recommended to According to the actual situation.
2 How long does it take to steam purple potatoes15 minutes or so.
Steamed purple potatoes have a delicate taste, many people like to eat in life, in general, steamed purple potatoes need 15-20 minutes, the specific need for how long, but also and the size of the purple potatoes, the larger the head of the purple potatoes, the more difficult to cook, and it takes longer, if it is a large purple potatoes, you can cut it into chunks and then steam it, so it is easier to steam it.
3 Boiled purple potato water is green can eatcan eat.
Purple potatoes are rich in anthocyanins, anthocyanins are a kind of water-soluble pigments, according to the different pH, can show red, purple, green and blue and other colors, boiling purple potatoes in the water was green is due to the role of anthocyanins, which is a normal phenomenon, is not a problem with the purple potatoes, therefore, you can continue to eat.
4 Boiled purple potatoes to peelDo not peel.
Boiled purple potatoes are directly into the pot with water cooked, if the skin of the purple potatoes removed, in the process of cooking, not only will lose the anthocyanins contained in the purple potatoes, but also easy to cook the purple potatoes, destroying the other nutrients, as well as reducing the taste of the purple potatoes, therefore, boiled purple potatoes do not peel.