1, yam can still be eaten after germination. Yam and potato belong to different subjects, germination is a normal phenomenon, and toxic substances such as solanine will not be produced after germination. Therefore, yam germination is non-toxic and will not affect eating. However, the germination of yam shows that life has begun to grow. Germination will lead to the decline of nutrients in yam, and there will be few nutrients lost by slight germination, while more serious germination will lead to much loss.

2. Once the yam germinates, it indicates that this nutrient is losing a lot, and the texture of the tuber has declined. If the tender bud is still short, it can be peeled and sliced and then soaked in water to increase its brittleness, so that its use value will not be too low; If the shoots are long, they are not suitable for eating.

3. There are two kinds of common yam in the market: common yam and rail yam. Compared with common yam, iron stick yam is unique in that it has high viscosity, white color, less moisture, slightly more hairs, and a unique dark red "rust spot", which is full of powder and greasy. After being broken, its cross section is white or slightly yellow, and its physique is very strong and heavy, and it will not be boiled for a long time.