1. There are two new varieties of black potato, Black King Kong potato and Black Beauty potato. The skin and meat of black king kong potatoes are dark purple, and they are bright blue-purple after cooking, like sapphire crystals; Its growth cycle is generally about 90 days, and its content is low, but it is rich in purple anthocyanins. Black beauty potato has smooth skin, dark purple color, dark purple flesh color and fragrant taste, and its growth cycle is about 90 days, so it belongs to middle-early maturity variety.

2. There are two kinds of white potatoes, one is round white potato, and the other is long white potato. White round potato has moderate starch content and is the most common potato on the market, which can be eaten all year round. The content of starch in white long potato is low, and its use is the same as that of white round potato, so it has high utilization value. It is a common potato in the market.

There are two kinds of yellow potatoes, one is yellow-brown potato and the other is yellow potato. Yellow-brown potato is the most common potato variety in vegetable market. The yellow-brown potato is only yellow-brown, but its meat is white and its starch content is high, which is an ideal choice for French fries. Yellow potatoes are not only yellow in skin, but also yellow in meat. This is one of the most popular potatoes in the market, and it is usually used to make soup or chowder.

4. Colored potatoes are a little more expensive than other potatoes, and their nutritional value is much higher than ordinary potatoes. A very remarkable feature of colored potatoes is that one potato can be planted, but potatoes of various colors can be produced, such as purple, red, black and blue. Therefore, it is often developed as a special food.

5. Dried sweet potato is a new variety of potato, but it is also common in the market. Many people think that red-skinned potatoes are the "new potatoes" of yellow-skinned potatoes or white-skinned potatoes, but they are not. The skin of red-skinned potatoes is red or purplish, but the flesh has many colors, which may be white, yellow or red, or the three colors may appear alternately. It is a kind of potato with low starch content, just like a potato with white skin.