The raw materials of pure sweet potato vermicelli are only sweet potato starch and water, and it will be very brittle after drying, and it will be broken with a light hand, and it is not easy to return to moisture after drying. Pure sweet potato vermicelli is drier and more brittle, with a moisture content of less than 12%. Sweet potato vermicelli is easy to break and has a lot of crushed powder. Fake sweet potato vermicelli has better toughness and very little crushed powder. The color of pure sweet potato vermicelli will vary, because the quality of the starch used in the production is not the same, some will be darker, and some sweet potato starch will be whiter after processing. However, the color of pure sweet potato vermicelli is relatively dark on the whole. After cooking, the color will be brighter and the taste will be stronger.
Pick sweet potatoes, wash them, crush them, filter them, add starch noodles to cold water, boil and stir to make a paste; after the paste is leaked and dried, it becomes the sweet potato vermicelli we usually see.
1. Look at the color. The color of real sweet potato vermicelli is translucent dark cyan or slightly yellow, while fake ones are often very transparent, transparent to whitish. The main reason is that fake sweet potato vermicelli is mixed with a large amount of edible gelatin.
2. Authentic sweet potato vermicelli, unless it is particularly refined, generally speaking, basically has some small bumps. Fake sweet potato vermicelli, with even water seepage and no lumps.
3. Authentic sweet potato vermicelli, varying in thickness, because the sweet potato seeps unevenly. The fake sweet potato vermicelli looks uniform in thickness and looks good.
4. If you want to buy genuine products, sometimes you should not choose cheap ones. The fake sweet potato vermicelli I bought in the supermarket cost 12 yuan per kilogram, while the authentic farm sweet potato vermicelli cost 20 yuan per kilogram. The difference is obvious.
5. If you have a lighter with you and it is convenient to burn, you might as well order one. The fake sweet potato vermicelli will crackle like fireworks when burned, but the real sweet potato vermicelli will only swell and become larger, and will not form balls or turn into powder.
6. Authentic sweet potato vermicelli, it will be broken at a discount. False, too much gelatin is added, it is not easy to break, and it is full of toughness.
7. Authentic sweet potato vermicelli, the aroma is the aroma of crops, and the fake ones are either tasteless or smell like chemicals.