Where does the authentic iron stick yam come from

People should be very familiar with the plant yam. Yam has a lot of nutritional value for the human body, and its taste is also very good. It also has a conditioning effect on some diseases of the human body. The authentic iron stick yam is a type of yam. Some people don’t know what effect this yam has. So, what are the characteristics of the authentic iron stick yam?

First, what are the characteristics of authentic iron stick yam? Iron stick yam. It is the best quality long yam, but the yield of this variety is particularly low, with an output of more than 2,000 kilograms per mu, and the yam grows very thin and long. It is more accepted by consumers in its main producing areas. Iron stick yam is one of the many varieties of yam. The quality of iron stick yam will vary depending on the planting location and the number of years between plantings. Among them, the Huai yam produced in the ancient Huaiqing Prefecture has higher medicinal value. Huai yam mainly refers to the yam produced in the ancient Huaiqing Prefecture (its geographical scope is equivalent to Wenxian, Qinyang, Wuzhi and Mengzhou in the current Jiaozuo area of ​​Henan Province). "Shennong's Herbal Classic" says that Dioscorea, also known as yam, is used as medicine. Its root is comparable to ginseng in medicinal effects, so it is also called "Huai Shen". It is recorded in the "Jiaozuo Chronicles" and the "Agricultural Collection" of the Qing Dynasty that it has value both in food and medicine. 1. Pharmacopoeia of the People's Republic of China 2005 edition, edited by the National Pharmacopoeia Committee and published by Chemical Industry Press (page 21); 2. Chinese Medicine Dictionary, published by Shanghai Science and Technology Press (page 166); 3. Chinese Medicine Dictionary, Volume 1, published by China Medical Science and Technology Press (page 502); 4. Compendium of Materia Medica, written by Li Shizhen in the Ming Dynasty and published by People's Medical Publishing House (page 1676);

Second, iron stick yam can be divided into two types due to different soil types: loam iron stick yam and sandy soil iron stick yam. Among them, the loess iron stick yam has strong geology, high viscosity and hard soil. So it has some twists and turns, although it is not good-looking, but it tastes better; Sandy Iron Stick Yam is grown in sandy land, the soil is soft, the taste is sweet, and the nutritional value is also high. It is cylindrical, 60-80 cm long, up to more than 100 cm long, about 2.5 cm in diameter, the skin is earthy brown, covered with fine hairs, and has purple-red dull spots. The meat is extremely delicate, white with a hint of yellow, firm and powdery, with little mucus, and does not fall apart even after long cooking. It has a fragrant, slightly sweet taste, and a particularly good texture, and you will not get tired of eating it for a long time. It can be used as both medicine and food. The skin of loam, sandy soil and iron stick yam is very thin, especially after being cooked. But one thing to note is that the daily amount for one person should be kept at around 3-4 taels. Eating too much can easily cause getting a sore throat.

What are the characteristics of authentic iron stick yam? Characteristics of iron stick yam: Appearance: Iron stick yam is usually 2-2.5 cm in diameter, the skin color is slightly darker, and the rhizome has iron red spots. Weight: The weight of a single iron stick yam is generally not more than 250 grams, which is five taels (but sandy iron stick yam over 80 cm can weigh about 500 grams, depending on planting technology and management). Flesh texture: When you break the iron stick yam, you can feel that the flesh is hard and powdery. The cross-section is delicate, white or slightly ivory yellow, and has little mucus. Taste: Due to the low water content in iron stick yam and the rich content of yam polysaccharides, its juice is relatively thick. After cooking, it tastes dry, sweet and fragrant. It feels "soft and sweet" when eaten. Eating it with the skin has a light numb taste. The iron stick yam grown on loess soil is shaped like a tree root, while the yam grown on sandy land is long and straight. The color of the iron stick yam is darker.