What varieties of fake Tiegun yam are there?

Tiegun yam is a variety of yam. The reason why we say Tiegun yam is fake is because Tiegun yam has been registered as a trademark by Jiaozuo. Application for protection of origin. Therefore, the iron-bar yam we usually refer to refers to the Huaiyam produced in the four counties of Jiaozuo. It is also the Huaiyam that is called the food of the gods by Healthy Road. There is no real or fake yam. What is real or fake is only its place of origin. Don’t ask me what the difference is. In ancient times, only yams from this area were tributes, and yam used in traditional Chinese medicine can only be produced in this area. We don’t know the difference in the effect of regulating the body. I am from Wen County, and everything I eat is grown at home. Do you think it is good to eat yam? This is indeed good. My ducks are fed only yam eggs and scraps every day, one egg a day. If they are fed grain, one egg every two or three days. There is still a difference between whether I want to eat it or not.

How to distinguish the authenticity of iron rod yam? 10 points

Currently, some of the iron bar yams sold on the market are fake iron bar yams shipped from Shandong and Hebei. Their prices are lower than the authentic iron bar yams. The authentic iron bar yams The origin of yam is Jiaozuo. Let’s talk about how to identify authentic and fake iron rod yam. Consumers must carefully identify it when purchasing to prevent being deceived.

Compared with ordinary Chinese yam, Tiegun yam has its own unique features. When buying Tiegun yam, we can use the following four methods to identify the authenticity:

Take a look: Tieguang yam is uniform in thickness, usually 1-2 centimeters in diameter (like an adult's thumb), with slightly dark skin and iron-red spots on the rhizomes. If the diameter is too thick or the skin is too smooth, it means it is not authentic. Second weigh: The weight of a single iron stick yam generally does not exceed 200 grams; if it is too heavy, it may not be authentic. Three-fold: When you break the iron stick yam, you can feel that its meat is hard and powdery, and its cross section is fine, white or slightly toothy yellow, with less mucus; ordinary yam is not only not so hard in meat, but also not powdery enough. Four tastes: Because the iron stick yam contains less water and is rich in polysaccharides, its juice is thicker, and it tastes dry and sweet after cooking. It feels "noodle-sweet" in the mouth, accompanied by a light numbness. .

How to distinguish real and fake iron rod yams

Farmers said that many people bring yams from Shandong and sell them here, calling themselves "iron rod yams" and selling them cheaper than us. In order to avoid being deceived, let me tell you how to identify the real iron rod yam.

At first glance: the iron stick yam is uniform in thickness, usually 2-2.5 cm in diameter (like an adult’s thumb), the skin color is slightly dark, and the rhizomes have iron-red spots; if the diameter is too thick or the skin is too smooth, It means it is not authentic.

Second weighing: The weight of a single iron stick yam generally does not exceed 500 grams; if it is too heavy, it may not be authentic.

Three-fold: When you break the iron stick yam, you can feel that its meat is hard and powdery, its cross-section is fine, white or slightly toothy yellow, and has little water content; ordinary yam not only has less hard meat, but also has less moisture. And the powderiness is not enough.

Four tastes: Because the iron stick yam contains less water and is rich in polysaccharides, its juice is thicker, and after cooking, it tastes dry, greasy, and sweet, and it feels "flourish and sweet" in the mouth. , eaten with the skin accompanied by a faint numbing smell.

How to identify authentic iron rod yam?

Look at the appearance

The thickness of iron-bar yams is usually relatively uniform, with a diameter about the size of a 1-yuan coin, slightly dark skin color, and unique iron-red spots on the rhizomes; when purchasing yam If you find that the diameter is very thick or the skin is relatively smooth, it means that it is not an authentic iron rod yam, but may be a vegetable yam or other varieties of yam.

Weigh the weight

Tieguang yam is a good yam with relatively sufficient powder, so there are tips for distinguishing its weight. Weigh it with your hands. If the weight of a single yam does not exceed 200 grams, or it feels too heavy, it may not be an authentic iron bar yam. If it feels too light, it is not an iron bar yam.

Knead it with your hands

Iron-stick yam is different from vegetable yam. Real iron-stick yam cannot be crushed with any two fingers, but other yams cannot be crushed. Guaranteed. Perhaps this is one of the reasons why it is called "Iron Rod". Break it off

Break off one head of the iron stick yam. If you look at it from the side, you can see that its meat is hard and powdery, and its cross section is fine, white or slightly tooth-yellow, with less mucus.

The ordinary vegetable yam is not only not that hard in texture, but also not powdery enough.

Steam and taste

Since the water content in Tiegun yam is very little and the yam polysaccharide content is very rich, its juice is thicker. Authentic Tiegun yam often lasts for a short time. It can be steamed (usually 5 to 10 minutes). After cooking, the taste will be dry and sweet. It will feel "flourish and sweet" in the mouth, and it will be accompanied by a light numbness. For counterfeit iron rod yam, the steaming time is Longer, the texture tends to be crispy.

If you can’t buy real iron yam, will eating fake iron yam have any medicinal effect? ??

Fake iron yam has no medicinal effect, Zhao Guozuo Village’s iron yam is authentic , available on Taobao

What is the difference between Tiegun yam and sesame yam?

Sesame yam is an ordinary vegetable yam, while Tiegun yam tastes "dry and sweet" and is the same source of medicine and food.

Difference 1: In terms of shape?

The thickness of the iron yam is about 1-1.5 cm, the length does not matter, the head is round and the tail is pointed;

The vegetable yam is very thick, and the thickness can reach four or five centimeters. , irregular shape.

Difference 2: Divide from the epidermis:

The skin of iron-bar yam has purple spots, pores, and densely distributed hairs. It must be noted: If the yam has been trimmed, the hairs on it will The beard will fall off, which cannot be used as a complete basis for judgment. It can be judged from the pore pimples;

The skin of vegetable yam is relatively smooth, and the pore pimples and hairy whiskers are scattered here and there.

Difference 3: From the texture of yam:

It can be seen from the fracture of yam: the texture of iron stick yam is very fine and firm, which means that the fiber is very thin and strong. This is The origin of the iron rod yam is that it is not easy to break;

The vegetable yam has rough fiber texture and a lot of water. You can squeeze out the water by pinching it with your hands. It is more watery in length and will break with a slight touch.

Difference 4: Judging from the taste;

Iron yam can be cooked in a boiling water pot in ten minutes. Whether it is steamed or boiled, the taste is the same as the sweetness of dry noodles, and it takes a long time to cook. It doesn't fall apart;

No matter how you steam and cook the vegetable yam, it remains crispy, so people use it to make delicious dishes.

Difference five: In terms of nutritional value: which one has the highest nutritional value, sesame yam or white yam?

Tiegun yam is rich in 18 kinds of amino acids and more than 10 kinds of trace elements, and other Minerals, so it has the effects of strengthening the spleen and stomach, nourishing the lungs and kidneys, nourishing the middle and replenishing qi, strengthening the spleen and replenishing deficiency, strengthening the kidneys and essence, nourishing the heart and calming the mind.

The red yam belt I bought is fake

It is generally not poisonous, but it is recommended not to eat it! But when you buy yams in the future, do a good analysis. To identify the authenticity, take a look: the iron stick yam is uniform in thickness, usually 1-2 cm in diameter (like an adult's thumb), the skin color is slightly dark, and the rhizome has iron-red spots; if the diameter is too thick or the skin is too smooth, or it is very If it is thick, it means it is not authentic. 2. Weigh: A single stick of Tieguang yam generally weighs no more than 300 grams; if it is too heavy, it may not be authentic. 30.00% off: When you break the Tieguang yam, you can feel that its meat is hard, powdery, and the cross section is fine and white. Or it may be slightly yellow in color and have less mucus; ordinary yam is not only not as hard in texture, but also not powdery enough. Four tastes: Because the iron stick yam contains less water and is rich in polysaccharides, its juice is thicker and the taste is dry and sweet after cooking. It feels "flourish and sweet" in the mouth, more like a willing sweet potato. And accompanied by a faint numbing smell.

How to identify pictures of Tieguang yam

At first glance: Tieguang yam is average in thickness, generally 1-2.5 cm in diameter (like an adult’s thumb), with a slightly dark skin color and a rhizome. Iron red spots; if the diameter is too thick or the skin is too smooth, it means it is not authentic. The thick iron-bar yams sold on the market are all fake iron-bar yams. After steaming, they are only flour but not flour, and the water vapor is relatively large. Since some growers are currently planting other local yams in Wen County, these yams are also It has become a variety of Huaiyam, but the quality still cannot be compared with Tiegun yam.

Comparison of the cross-sections of iron-bar yam and vegetable yam with currency, followed by iron-bar yam. Iron-bar yam is small in size, has less moisture, has a large density and is solid in texture

Second weigh: iron-bar yam The weight of a single bottle generally does not exceed 200 grams; if it is too heavy, it may not be authentic.

Three-fold: When you break the iron stick yam, you can feel that its meat is hard and powdery, its cross-section is fine, white or slightly toothy yellow, and has less mucus; not only is the meat of ordinary yam not so firm, , and the powderiness is not enough.

The difference between Niujiao and Tiegun yam

1. Tiegun yam: Tieguang yam is curved and twisted. Although it is not pretty, it is the best among iron yam. It tastes good. The high nutritional value is accepted by more people; because the sandy soil iron bar yam is planted in sandy land, the soil is soft, the taste is slightly inferior, and the nutritional value is slightly inferior to the loin soil iron bar yam. It is cylindrical, 60-80 cm long, It can be up to more than 100 cm long and about 2.5 cm in diameter. Its surface is earthy brown, densely covered with fine hairs, and has purple-red dull spots. The meat is extremely delicate, white and yellow inside, firm and powdery in texture, with little mucilage. It does not disintegrate after being cooked for a long time. It is fragrant, slightly sweet, and has a very good texture. You will not feel tired after eating it for a long time. It can be used both as medicine and food. The skin of iron rod yam in Wen County's loin soil and sandy soil is very thin, especially after it is cooked. 2. Yam: It is a herbaceous vine of the Dioscoreaceae family. The rhizome is rod-shaped, 33 to 66 cm long, and the longest is more than 100 cm. The roots are less branched, and the white roots have many fibrous roots. They are sticky and have a slender cross-section, up to 10 feet. Remain. The leaves are opposite, with various leaf shapes, often heart-shaped or scissor-shaped, with 6 to 9 veins. There are buds (called Lingyuzi, also called yam beans, yam eggs) between the leaf axils, which can be used as propagation materials. edible. White small solitary flowers, capsule.