Potatoes are generally 15 to 80 cm tall, glabrous, or sparsely pilose.

The stem is divided into two parts: the aboveground stem and the underground stem.

With high nutritional value, strong adaptability and high yield, it is the third most important food crop in the world, second only to wheat and corn.

As a food, its preservation period should not be too long, and it must be kept at low temperature, dry and airtight.

Potato sprouts are slightly toxic, so when potatoes are put for a long time, the emergence of buds, or rot, mildew are extremely easy to cause poisoning, all can no longer be eaten.

Potatoes are rich in nutritional value. They contain much more protein and vitamins C, B1 and B2 than apples:

1. Vitamin C is 10 times that of apples.

2. B vitamins are 4 times as much as apples.

3. The content of calcium, phosphorus, magnesium and potassium is several times to dozens of times that of apples, especially the content of potassium, which can be said to rank first in vegetables.E

4. It is rich in carbohydrates, which can supply a lot of heat to the human body.

Regular cooks have their own set of skills for choosing food, so as to ensure that they can buy good quality food.

1. Look at the shape: round potatoes are powdery potatoes and are suitable for making salads or mashed potatoes, while the slender May Queen is sticky and not easy to boil, so it is suitable for making curry.

The surface is too uneven to avoid buying.

2. Look at the surface: pick potatoes with smooth skin and shallow bud eyes.

Such potatoes are easy to peel and make full use of them.

Try to choose fat and symmetrical potatoes with no dry scars and rough skin, no disease spots, insect bites and mechanical injuries, no wilting, softening, and no fermented alcohol smell.

3. Look at the color: to buy yellow potatoes, yellow potato skin is dark yellow, internal color is light yellow, high starch content, contains carotene, and the taste is better.

In addition, also pay attention to the green skin of potatoes do not buy and eat them.

Because it contains solanum nigrum is toxic, heating will not be destroyed, eating will be poisoned.

Potatoes can be stewed, roasted, fried, or fried in many ways.

1. Wash the potatoes with clean water, do not peel, soak them in salt water for half an hour, put them in a pot and boil until medium well, remove and drain.

Gently press to slightly flat after cooling, sprinkle with salt and turn evenly.

2. Lubricate the pan with oil and fry the potatoes over low heat, sprinkle with cumin powder, chili powder or black pepper particles according to your preference.

You can also cut up the chili directly until the surface is golden and completely soft.