Iron stick yam is a variety of yam. The reason why the iron stick yam is fake is because it has been registered as a trademark in Jiaozuo and applied for protection of origin. Therefore, the iron stick yam we usually say refers to the yam produced in four counties of Jiaozuo, which is called the food of the gods by the way of health preservation. Yam is not true or false, only the place of origin. Don't ask me what the difference is. In ancient times, only the yam in this area was a tribute, and the yam in Chinese medicine could only be produced in this area. I don't know what is the difference between the effects of conditioning the body. I come from wen county and eat my own food. Do you think eating yam is good? This is really good. My ducks only feed yam eggs and scraps every day, one egg a day, and one egg every two or three days if they are fed food. I think there is a difference between eating and not eating.

How to tell the true and false of iron stick yam? 10 point

Some of the iron-stick yams sold in the market now are fake iron-stick yams shipped from Shandong and Hebei. The price is lower than that of authentic iron-stick yams, and they are produced in Jiaozuo. Let's talk about how to identify the true and false iron stick yam. Consumers must carefully identify when buying to prevent being cheated.

Compared with common yam, iron stick yam has its own uniqueness. When buying iron stick yam, we can use the following four tricks to identify the authenticity:

At first glance, the iron stick yam is uniform in thickness, with a diameter of 1-2 cm (like an adult's thumb), slightly dark in skin color and iron red spots at the root; If the diameter is too thick or the skin is too smooth, it means it is not authentic. Second, the weight of iron stick yam is generally not more than 200 grams; It's too heavy. It may not be authentic. 30% off: when the iron stick yam is broken, you can feel that its meat is hard, the powder is full, the section is delicate, white or yellowish, and there is less mucus; Ordinary yam is not only not so hard, but also not enough powder. Four flavors: Because the iron stick yam contains less water and is rich in yam polysaccharide, the juice is thick, and it tastes dry, greasy and sweet after cooking. The entrance has the feeling of "sweet with sweet" and is accompanied by a faint hemp taste.

How to distinguish true and false iron stick yam

Farmers say that many people sell Shandong yam here, claiming to be "iron stick yam", which is cheaper than ours. In order not to be cheated, let's talk about how to identify the real iron yam.

At first glance, the iron stick yam is uniform in thickness, generally 2-2.5 cm in diameter (like an adult's thumb), with a slightly black skin and iron-red spots on the roots; If the diameter is too thick or the skin is too smooth, it means it is not authentic.

Second, the weight of iron stick yam is generally not more than 500 grams; It's too heavy. It may not be authentic.

30% off: when the iron stick yam is broken, you can feel its hard meat, full powder, delicate section, white or yellowish, and less water; Ordinary yam is not only not so hard, but also not enough powder.

Four flavors: Iron stick yam is rich in yam polysaccharide because of its low water content and thick juice. After cooking, it tastes dry, greasy and sweet, and has the feeling of "sweet face" at the entrance, accompanied by a faint hemp flavor when eaten with skin.

How to distinguish authentic iron stick yam?

Look at the appearance

Iron stick yam is usually uniform in thickness, with a diameter of about 1 yuan coin, slightly darker skin color and unique iron red spots on the rhizome; When buying yam, if you find that the diameter is very thick or the skin is very smooth, it means that it is not an authentic iron stick yam, but may be a vegetable yam or other varieties of yam.

consider

Iron stick yam is a kind of good yam with rich powder, so there are tricks to distinguish between light and heavy. Touch by hand, if the weight of a single root is less than 200 grams, or it feels too heavy, it may not be an authentic iron stick yam, it feels too light, and it is not an iron stick yam.

Pinch by hand

Iron stick yam is different from vegetable yam. The real iron yam can't be crushed by any two fingers, and other yams can't be guaranteed. Perhaps this is one of the reasons why it is called "iron bar". Break it. look

Breaking a head with an iron stick yam can be seen from the side that its meat is hard, full of powder, delicate in section, white or slightly yellow, with little mucus. The common yam is not only not so hard, but also not enough.

Steamed taste

Because iron stick yam has little water content and rich polysaccharide content, its juice is thick. Authentic iron stick yam can often be steamed in a short time (usually 5 ~ 10 minutes). After cooking, the taste is dry, greasy and sweet, and the taste is "sweet with sweetness", accompanied by a faint hemp taste. Fake iron yam takes a long time to steam.

Can't you buy real iron yam? Is eating fake iron yam effective?

The fake iron bar yam has no efficacy. The iron bar yam in Zhaoguozuo Village is genuine and sold on Taobao.

What's the difference between iron stick yam and hemp potato?

Hemp yam is a common vegetable yam, while iron yam is "dry and sweet" and has the same origin as medicine and food.

Difference 1: From the appearance?

Iron stick yam is about 1- 1.5 cm thick, regardless of length, with a round head and a pointed tail;

Vegetable yam is very thick, four or five centimeters thick and irregular in shape.

Difference 2: From the epidermis:

Iron stick yam has purple spots on its epidermis, papules on its pores and dense hair. It should be noted that if the yam is sorted, the hairs on it will fall off, which can not be completely judged, but can be judged from the papules in the pores;

The skin of yam is smooth, with pimples and loose hair.

Difference 3: from yam texture:

It can be seen from the fracture of yam that the texture of iron bar yam is very fine and dense, that is to say, the fiber is very fine and strong, which is the origin of iron bar yam and is not easy to break;

Yam fiber is rough and contains a lot of water. It can be squeezed out by hand and is watery. It will break when touched slightly.

Difference 4: divide from taste;

Just put the iron stick yam in the water pot and cook it for ten minutes. Whether steamed or boiled, the taste is dry and sweet, and the cooking time will be very long.

Yam is crisp no matter how it is cooked, so people use it as a refreshing dish.

Difference 5: In terms of nutritional value, which nutritional value is higher, potato or sweet potato?

Iron stick yam is rich in 18 amino acids, 10 trace elements and other minerals, so it has the functions of strengthening spleen and stomach, tonifying lung and kidney, invigorating middle energizer, invigorating spleen and deficiency, consolidating kidney and replenishing essence, nourishing heart and calming nerves.

Is the red iron mountain medicine belt I bought fake?

Generally, it is not toxic, but it is recommended not to eat! But when you buy yam in the future, analyze it carefully. To identify the true and false, the iron stick yam is uniform in thickness, with a diameter of 1-2 cm (like an adult's thumb), slightly dark in skin color and iron red spots on the root; If the diameter is too thick or the skin is too smooth or thick, it means it is not authentic. Second, the weight of iron stick yam is generally not more than 300 grams; If it is too heavy, it may not be authentic: if you break the iron stick yam, you can feel that its meat is hard, full of powder, delicate cut, white or slightly yellow, and less mucus; Ordinary yam is not only not so hard, but also not enough powder. Four flavors: Because the iron stick yam contains less water and is rich in yam polysaccharide, the juice is thick, and it tastes dry, greasy and sweet after cooking. The entrance feels "sweet", more like sweet potato, accompanied by a touch of hemp.

How to distinguish iron bar yam pictures

At first glance: the iron stick yam is average in thickness, with a diameter of 1-2.5 cm (like an adult's thumb), slightly dark in skin and iron-red spots on the rhizome; If the diameter is too thick or the skin is too smooth, it means it is not authentic. The crude iron bar yam sold in the market is fake iron bar yam. After steaming, it only contains no flour, and the water vapor is relatively large. At present, some growers have planted other local yams in Wenxian County, so these yams have become a kind of yam, but their quality is not as good as Tiegan Yam.

Comparison of cross section and currency between iron stick yam and vegetable yam, followed by iron stick yam, which is small in size, low in moisture, high in density and firm in texture.

Second: the single ingredient of iron stick yam generally does not exceed 200 grams; It's too heavy to be true.

30% off: when the iron stick yam is broken, it can be felt that its meat is hard, full of powder, delicate section, white or yellowish, and less mucus; Ordinary yam is not only not so tight, but also not enough powder.

The difference between beef and iron stick yam

1. Iron-stick yam: It's crooked, although it doesn't look good, but it belongs to the best of iron-stick yam, with good taste and high nutritional value, which is accepted by more people; Because the sand iron stick yam is planted in the sand, the soil is soft, the taste is slightly inferior, and the nutritional value is slightly lower than that of loam iron stick yam. Cylindrical, 60-80 cm long, up to 100 cm long and about 2.5 cm in diameter. The epidermis is brown, densely covered with fine hairs, and there are purple-red dark spots. The meat is extremely delicate, white and yellow, firm and full, silty, with little mucus, and will not rot after long cooking. Fragrant, slightly sweet, very good taste, not greasy after long-term consumption. Both medicine and food. The skin of iron stick yam in Lou soil and sandy soil in Wenxian county is very thin, especially after cooking. 2. Yam: a herbaceous vine of Dioscorea, with a rod-shaped rhizome, 33-66 cm long and the longest exceeding 100 cm. There are few branches on the roots, many fibrous roots are attached to the white roots, which are sticky, and the cross-sectional stems are slender and can reach more than ten feet. The leaves are opposite, with various shapes, often heart-shaped or scissor-palm-shaped, with 6-9 veins and buds in the axils (called Laiji, also called yam bean and Yam Egg), which are used for breeding materials and eating. Small white solitary flower, capsule.