2. When fresh yam is cut, it will have mucus, which is easy to slip and hurt your hands. You can wash it with water and a little vinegar first, which can reduce mucus. Soak yam in cold water or lemonade with vinegar, and then remove the decanter when cooking, so that yam will not turn black even if it is not eaten immediately.

Yam, also known as Dioscorea opposita, Dioscorea opposita, Dioscorea opposita, Dioscorea opposita and Dioscorea opposita, is a herbal medicine recorded in Chinese Materia Medica, and its medicinal source is the dried rhizome of Dioscorea opposita.

Yam has the effects of nourishing and strengthening, helping digestion, astringing deficient sweating and stopping diarrhea, and is mainly used to treat chronic enteritis such as diarrhea due to spleen deficiency, cough due to lung deficiency, diabetes, short and red urine, nocturnal emission, female leukorrhagia and dyspepsia. Yam is most suitable to be taken with Ganoderma lucidum, which has the function of preventing and treating diabetes. Yam has a great development prospect in food industry and processing industry.