1, crisp - because the raw material only sweet potato starch, after drying very crisp, with a light hand grasp on the break, and after drying is not easy to return to the moisture. The market sells the claim that pure sweet potato flour in the sun for 10 days will not be a grasp on the break, because they put a kind of edible gum inside.

2, the color is darker - pure sweet potato leaking out of the vermicelli color is darker, a fierce look appears to be black.

3, resistant to cooking -

Generally cooked more than 10 hours is still very tendon.

4, tendon, chewy - real pure sweet potato vermicelli very tendon. The market to buy the so-called pure sweet potato flour because of the edible glue so also very tendon, you can with the first to identify the real and fake.

5, dry chewing sweet potato starch flavor - this method may have to connoisseur to recognize