How to distinguish real and fake sweet potato vermicelli? How to identify the authenticity of sweet

One look: look at the appearance.

The first step in getting sweet potato vermicelli is to look at its appearance and observe its color. Compared with the pure real sweet potato flour, because of the difference in the quality of the sweet potato starch used and other factors, the difference in the fineness of the processing process, resulting in the difference in color. For example, some sweet potato flour is dark, some are light, and some are even transparent.

On the contrary, those sweet potato flour with more transparent and bright colors and too good looks are noteworthy, which is generally sweet potato flour with additives or mixed with real and fake.

After looking at the color, take a look at the thickness of the sweet potato flour, generally speaking, the sweet potato flour is also divided into thickness, for the same batch of sweet potato flour, if the thickness of the sweet potato flour is different, this is generally handmade; If it's the kind of thickness that is exactly the same, it's generally made by a machine, and it may be adulterated fans. (This point should not be used as a primary basis, only as a reference, because there is no guarantee that the machine will produce fake vermicelli.) ）

Second smell: smell the taste.

The main raw material for authentic sweet potato flour is sweet potato starch, sweet potato starch has no taste, so the sweet potato flour made with it naturally has no taste. But when you smell an unpleasant smell on the sweet potato flour, or other peculiar smells such as ink smell, this is generally a fake sweet potato flour. In addition, you can use a lighter to burn the sweet potato flour, after the sweet potato flour is burned, if it smells burnt, this is real sweet potato flour; If it continues to burn after burning, and it will also release black smoke and bad smell, this is a fake vermicelli, and this kind of vermicelli must not be purchased.

Buy it, and don't eat it anymore.

Three-break: break vermicelli.

Sweet potato vermicelli made with sweet potato starch has poor toughness, and if you break it by hand, it will generally break as soon as you break it, so we usually see some broken vermicelli falling into the bag. If the sweet potato flour is elastic and not easy to break when broken by hand, this is basically "fake sweet potato flour".

Is it difficult to distinguish the real from the fake sweet potato vermicelli?

Keep in mind the "one look, two smells, three breaks", and easily distinguish the real from the fake! We must learn these methods of identification, so that we can buy genuine products with a conscience, so as not to increase the burden on the body.

First: look at the gnocchi.

This is the easiest method, because pure sweet potato flour is difficult to be stirred evenly by water, so no matter how much effort is used, there will be some small gnocchi in the real sweet potato flour, and it is difficult to have gnocchi with other starch added in the fake sweet potato flour.

How to distinguish the real from the fake with sweet potato flour? A few simple tricks, never be fooled again, it's too practical.

Second: look at the appearance.

Pure sweet potato flour is a white powder with a uniform color visible to the naked eye, no spots on the surface, and no spots! Good sweet potato flour is transparent and shiny, of course, it is not excluded that some sweet potato flour will be slightly yellow and gray because of the raw materials. But if the sweet potato flour you buy is completely transparent or has no luster at all, then you have to be wary of it, this is a low-quality fake vermicelli.

How to distinguish the real from the fake with sweet potato flour? A few simple tricks, never be fooled again, it's too practical.

Third: look at resilience.

Generally speaking, authentic sweet potato flour will not be tough, and it will become brittle after drying, so it will break if you fold it! It doesn't get back to moisture after drying!

The sweet potato flour that appears on the market now is claimed to be exposed to the sun for ten days and will not break, just because they add a kind of edible gum to it, because we can distinguish the authenticity of sweet potato flour by folding it.

Fourth: Smell the smell.

Real sweet potato flour is made from sweet potato starch, so it doesn't smell good.

However, fake sweet potato flour will add gelatin chemicals, so it will be a little unpleasant to smell carefully, and even have a pungent smell, which you can also distinguish through this.

It is difficult to buy authentic sweet potato flour in the market, so everyone must be careful when choosing.

1. Quality standards for sweet potato vermicelli.

Sweet potato vermicelli, this kind of agricultural and sideline products, there is no national implementation standard, only the rural life experience standard. The elderly with life experience can recognize the real and the fake with the naked eye.

Sweet potato vermicelli, the ultimate criterion is: cooked quickly, cooked for a long time without mush, and eaten smoothly and springy. It is not sweet potato flour, and it will be made into soup after boiling for a while; Add other gums, and when cooked, it feels like biting a strip of skin, and you can't chew it.

In terms of color, sweet potato vermicelli has its own primary color. We all know that the sweet potato itself is yellow, red and white, and the process of making vermicelli in the countryside is primitive and rough, which will have the true color of sweet potatoes. Some vermicelli sauce is yellow, some are blue, and some are beige, of course, they are all light colors, not heavy colors.

The obvious physical characteristics of sweet potato vermicelli are that they are crispy, and if you feel carefully, they will be crunchy and break as soon as you break them. Vermicelli masquerading as sweet potato flour, such as tapioca vermicelli, is to be added with edible gum. If you add less, you can't pull the vermicelli, and if you add more, you will continue to fold, and you will continue to break a few rounds repeatedly.

Second, the quality of sweet potato vermicelli.

Sweet potato vermicelli is a crude agricultural product, and the process is concise: the sweet potato is washed to remove the soil, ground and soaked, and the starch is extracted. Then the boiling water is adjusted into powder, and then drained into strips of water to boil and mature, soaked in cold water to cool, and then taken out to dry.

The whole process does not require current process equipment, does not require any chemical means, and does not need precise monitoring and testing.

Therefore, the processing and production of sweet potato vermicelli is pure and original, and sweet potato vermicelli is the closest agricultural and sideline product to natural food, so people love to eat it. In particular, I am scared of all kinds of chemical pollution, vegetables and grains have pesticide residues, chickens, ducks, fish, shrimps, pigs, cattle and sheep have hormones, edible oil has genetically modified organisms, and the air has car exhaust, and so on. When there is not much clean stuff, sweet potatoes are not genetically modified, do not require many chemical fertilizers and pesticides, and do not need any additives to produce vermicelli, which is one of the cleanest ingredients.

3. Identification of the authenticity of sweet potato vermicelli.

The production cost of sweet potato vermicelli is not high, sweet potatoes are 5 cents a catty, 5 catties of sweet potatoes extract a catty of flour, and make a catty of vermicelli. So, the full cost of sweet potato vermicelli is made up of materials and labor, and nothing else. For example, there is no need for equipment, plant water and electricity management costs.

If the labor cost and the material are halved, then the total cost of one pound of vermicelli is 5 yuan. According to the rules of market value, the cost and gross profit are halved, and the retail price is 10 yuan per catty.

Sweet potato vermicelli is fake, and you can only make money from the cost. We know that tapioca flour is cheaper than sweet potato flour, and edible gum is cheaper than tapioca flour. Fake sweet potato vermicelli can only be made of two materials, tapioca flour and edible gum.

And then to the worst, the highest and the lowest, which is determined by the proportion of these two materials. If there is less cassava flour, it will be worse and cheaper.

From this, it is easier to judge the real vermicelli. Three easy ways to master:

Whether it is good to break. Pure sweet potato vermicelli is easy, fake is hard. The more edible gum, the more difficult it is to break.

Appearance. The color is natural and the surface thickness is uneven. The colors are bright and obvious, and the vermicelli is slippery and smooth, and it is a fake.

Flavor. The genuine product only has a sweet potato flavor, but the fake one does not.

Remember that if you are 3 o'clock, you are not afraid to buy fake sweet potato vermicelli:

1. Burn it with a lighter, the main raw material of sweet potato vermicelli is starch, and starch can be burned, so when we buy sweet potato flour, bring a lighter, take out a sweet potato vermicelli, and burn it with a lighter. It's fake.

2. Take a look at the surface, the surface of sweet potato flour is untidy and jagged, because there will be gnocchi in the sweet potato flour that is not easy to dissolve, so the surface of the vermicelli will have some unevenness. If you buy sweet potato flour and find that the surface of the vermicelli is very smooth, then you should pay attention to it, and if the vermicelli is too transparent, it may be mixed with gelatin, real vermicelli, it should be opaque.

3. Fold the sweet potato flour, we can take a vermicelli and fold it when we buy it, the real sweet potato flour is very crisp, one is broken, and the fracture is white powder, if you fold the red vermicelli to break several times, then this is a fake sweet potato flour.

Remember the above 3 points, and you can distinguish real and fake sweet potato vermicelli.

To identify an increase in sweet potato vermicelli, you can first soak the sweet potato vermicelli in water, then leave it overnight, and then try to distinguish it again the next morning. If it's a real sweet potato fry, it won't become very soft.

To distinguish the authenticity of sweet potato vermicelli, you can learn from itcolor, see if there is toughness, smell the taste, look at the condition after cookingand other aspects to distinguish, the specific content is as follows:

1. Look at the color

In fact, the color of real fries is darker, because there are different varieties of sweet potatoes, so the color is also different. The general color is mostly off-white and brown. But it won't be very white, and if it's the kind that is very white, it's likely that it's adulterated with starch.

Don't buy that one.

2. See if there is toughness

Real sweet potato vermicelli is not tough, it will break easily from an aesthetic point of view, and it is relatively brittle, even in more humid weather, the vermicelli will break as soon as it breaks. But if it is not easy to be broken, it is very likely that it is adulterated, and gelatin will be added to it, so the sweet potato vermicelli will not be easy to break, and such sweet potato vermicelli is fake.

3. Smell the smell

Normal real sweet potato noodles will not have any peculiar smell, only a faint taste of sweet potatoes, I don't know if you have carefully discovered, if the taste of mold, this kind of sweet potato flour is best not to buy, because it has been a long time for him. If you observe that sweet potato vermicelli has a peculiar smell, then there is a good chance that it is not a real sweet potato vermicelli. So you can smell more when you buy sweet potato vermicelli.

4. Look at the situation after cooking

Pure sweet potato vermicelli will become very soft and chewy after cooking, and its water absorption ability will also become very strong, and the thickness can increase to 2 times the original, while fake sweet potato vermicelli does not have such a large expansion index, it will become smaller, and most vermicelli cannot be chewed.

5. Burn with fire

Another way is to light the sweet potato flour with a lighter, the speed of burning is very fast, and after burning, it will expand a little, it will not become a hard ball, and it will not completely become a powder, then it means that it is really sweet potato vermicelli; If the burning rate is very slow, there is a peculiar smell after burning, and it will turn into powder, then it means that it is fake.

Let's take a look at a picture to compare the appearance color of real and fake sweet potato flour (as shown below), if there are no real and false vermicelli put together to distinguish, it is difficult to distinguish with color and other appearances, so the most reliable way is to burn with fire, put the vermicelli horizontally horizontally, the fake vermicelli fire will be extinguished as soon as it is removed, it is not easy to burn, the ash hand feels grainy, the innocent vermicelli fire will continue to burn, the ash hand touches the delicate, just like the grass ash, and when burning, you will hear the explosion sound, A small amount of ash will float into the air, and it is pure sweet potato vermicelli.

Secondly, it can also be referred to on **, less than 15 yuan basically do not need to be considered, especially the kind of average **5 yuan a catty, the market price of sweet potato starch is 15 a catty! Of course, it doesn't mean that expensive is necessarily true, but it can only be said that a few dollars a pound must be fake! Next, let's talk about distinguishing the real from the fake, as shown in the following figure:

Observe the color of the vermicelli. Generally speaking, real sweet potato vermicelli should be translucent dark cyan or slightly yellow, not the more transparent the better.

See if there are any gnocchi. Real sweet potato flour is difficult to mix well with water, so no matter how hard you try, there will be small gnocchi in the noodles. Other starches seep evenly, and it is difficult to have gnocchi in the noodles made.

If you look closely, real sweet potato vermicelli will have different thicknesses. For the same reason as the previous one, because the sweet potato flour is not evenly permeable, the noodles made are thick and thin. The vermicelli made of other starches is uniform in thickness.

Real sweet potato vermicelli is easy to break. Sweet potato flour itself is not tough, and even in wetter weather, the vermicelli will break as soon as it breaks. When we were kids going to school, we passed by the site where the vermicelli was dried, and there were always a lot of broken vermicelli on the ground to eat.

The vermicelli made of other powders is not easy to break because it is mixed with gelatin, which is tough.

Smell the smell. Real sweet potato vermicelli has no taste. Some counterfeit vermicelli have a special smell of stinky ink because of the addition of dyes or ink.

Look at the number of "noses". When the vermicelli is dried, it is all rod by rod, so there is a "nose". Real sweet potato vermicelli is relatively easy to break, so there is only one layer, and there will never be two "noses" in one vermicelli.

The vermicelli made of other flour is very long because of its toughness, and there are many "noses". If you find that a vermicelli has two noses, you can basically conclude that it is not a real sweet potato vermicelli.

If you have a lighter with you, you can burn it. Real sweet potato vermicelli will swell a little after burning, and will neither become a hard ball nor completely become a powder.