Purple potatoes can be boiled for 15-20 minutes, too long will affect the taste. If you don't know whether the purple potatoes are cooked or not, you can pinch them with your hands, pinching them up and softening them. Purple potatoes, also known as black potatoes, with purple and dark purple flesh, are rich in anthocyanins and selenium, and are also rich in dietary fiber, protein, vitamins, minerals and other nutrients, and have a high food value.

Note:

1, cooking purple potatoes do not have to be hot water in the pot, you can also cold water cooking, does not affect the taste of purple potatoes, and cold water cooking more uniform heat, cooking out of the purple potatoes is not easy to break the skin.

2, life consumption, it is recommended to buy small purple potatoes, small purple potatoes, sweetness is higher, the taste is also better, and cooking small purple potatoes is not time-consuming.