Yongji agriculture accepts and welcomes consumers to identify Yongji sweet potato vermicelli at any time. Yongji agriculture specializes in conscience foods, only for quality living, without any additions: 100% using pure sweet potato starch to produce.

1. Look at the color: the real sweet potato vermicelli is deeper grayish black color, transparent, dark color (Due to different sweet potato varieties, so each kind of vermicelli is with slightly different color). The surface is rough with a small white pimple occasionally, because the potato starch granules are relatively large that not easy to fully dissolve. (The fake sweet potato vermicelli is especially white, bright, smooth and black);

2. The flexibility: the sweet potato vermicelli with 100% pure sweet potato starch is more brittle and easily broken, not easy to get damp after dried. (The sweet potato vermicelli added something is not easy to broken with good elasticity);

3. The smell: the sweet potato vermicelli is no peculiar smell and the water does not change color when soaked in hot water. (The fake sweet potato vermicelli will be musty, sour, pungent taste and water easily changes color);

4. Burn with fire: the sweet potato vermicelli is blistering, white and gray colors with blue flame.(The fake sweet potato vermicelli is not blistering with popping sound and black smoke ash foaming flame, and smells bad);

5. Boil. The color is deeper and becomes light color, the vermicelli become soft and translucent, and the soup is a little cloudy. (The fake sweet potato vermicelli is not soft and not discolored because of adding gums);

6. Eat. The sweet potato vermicelli is tough and chewy, and smooth. (Fake sweet potato vermicelli is so tough that couldn't eat);

7. The fake sweet potato vermicelli has many additives (industrial paraffin, ink, alum, gelatin, borax, lemon yellow, blackish green, etc.). It is not nutritious and harmful if often eats. So we must select the vermicelli with 100% pure sweet potato starch.