The noodle yam is the iron yam is finer, the surface is curved with red spots and vigorous hairy whiskers. And crisp yam is vegetable yam, thicker, smoother surface.

Difference a, different appearance

Crisp yam is also known as vegetable yam, is cylindrical thicker, the color is brighter, less root beard and soft. The face of the yam is slightly flat color darker, skin spots larger, root beard thick and long and strong.

Difference two, different practices

Crisp yam is suitable for stir-fry, and stew or desserts need to choose the face of the yam, the taste will be more sweet and glutinous full, face of the yam's taste of the thin skin flavor slightly sweet. It's a good idea to eat a lot of crispy yams, but you won't get tired of them.

Difference three, nutritional value is different

Nutritional value of the face of the yam is higher than the crisp yam, especially the face of the yam planted in the kiln, the most precious. Due to the clay soil is very hard, face yam in the clay soil growth is extremely strenuous, curved growth process moisture is compacted to a minimum, so creating the effect of extreme taste after maturity.

Difference four, section discoloration is different

The iron stick yam contains less reducing sugar, so the section is not easy to turn yellow. Ordinary yam will turn yellow soon after cutting if not treated. Steaming is very resistant to cooking, not rotten for a long time. The taste is delicate, and noodle and powder, sweet and delicious, slightly medicinal flavor.