The sweet potato is first made into sweet potato powder, and then it is made into sweet potato vermicelli. The yield of sweet potato powder is close to 20%, about 5-7 kg sweet potato 1 kg powder. The utilization rate of sweet potato powder is 95%, which is almost not wasted. 1 kg sweet potato powder can produce 9.25 sweet potato vermicelli. According to the real method, the cost price of one kg sweet potato vermicelli is about 4-0. The ex-factory price is at least 6 yuan per catty, and there are profits from wholesalers and distributors among them. Therefore, the retail price of real sweet potato vermicelli in the market is generally not lower than 10 yuan. Selling sweet potato vermicelli for 5 or 6 yuan is an IQ tax. Will merchants give you charity?
Especially when catching a big episode, don't listen to the vendor's bluff. His vermicelli wants to be sold to you at a low price. It is definitely not the real thing. According to the cost method, unless it is processed by itself, it is made by other powders. There are no more than three kinds of vermicelli. No matter how the starch of sweet potato, corn and potato changes its appearance, it can't be separated from these kinds of ingredients. The proportion of fake vermicelli starch can't reach, and something similar to glue is mixed in, and additives and potatoes are used.
What powder is fake sweet potato vermicelli?
If only cheap corn starch, potato starch, cassava starch and so on are used instead, the situation will be relatively better. Although the taste will drop, it will not affect the health, so the merchants will earn a price difference, and the average person will buy ten kilograms or eight kilograms, so it is not a big problem. If the merchants use inferior starch instead, it will be miserable. The price of starch in the market ranges from a few cents to a few dollars, depending on which one is used.
How to distinguish true and false sweet potato powder?
1, 10% off, this is an effective way to identify sweet potato noodles. If you fold fake sweet potato noodles at 180 degrees, it won't break, because gelatin is added, and the real sweet potato noodles will be crispy and immediately broken, just like a small snack with twist.
2. Burn it and ignite the fake sweet potato vermicelli. After burning it, it will be residue and accompanied by odor. The real sweet potato vermicelli will expand rapidly after preheating, accompanied by a sizzling sound, and the ashes are all powder.
3. Boil it, the real sweet potato vermicelli will increase obviously if it is soaked easily for a while, and it will not be easily broken when it is boiled for about 20 minutes. The entrance is chewy and the color is obvious, but the fake vermicelli can't be done. If it is cooked for a long time, it will not only taste bad, but also be harmful to the body. In order to save a few dollars, it is really not worth the loss.
Therefore, when choosing vermicelli, we must carefully observe and be optimistic about the production date, site, shelf life, etc. Beautiful vermicelli is not necessarily a real sweet potato vermicelli.