Roast the iron rod yam on the stove to remove the hair on the body, then wash it, cut it off, and steam it in a pot for 10-15 minutes.

Generally, it takes about 10-15 minutes after the steamer is filled with air. If you are really not sure whether it is cooked, you can use chopsticks to check it like steaming sweet potatoes.

Extended information

Prevent cardiovascular disease

Yam contains almost no fat, and the mucin contained in it can prevent fat deposition in the cardiovascular system and prevent arterial disease. Hardening occurs prematurely. Yams contain saponins that can lower cholesterol and triglycerides, and can improve conditions such as hypertension and hyperlipidemia;

Prolong life

Yam can increase T lymphocytes in the human body and enhance immune function. Delays cell aging;

Anti-hepatic coma

The choline contained in yam is the material basis of acetylcholine, a neurotransmitter related to learning and memory. Studies have found that yam has a sedative effect. It can resist hepatic coma;

Weight loss and bodybuilding

Yam contains a variety of trace elements, rich vitamins and minerals, especially high potassium content and relatively low calories. Regular consumption has the effect of weight loss and bodybuilding.

Reference: Baidu Encyclopedia-Yam