How to choose bird s nest to distinguish the real from the fake, and how to distinguish the real fro

Nowadays, some traders will use fake bird's nests instead of real bird's nests to sell in order to make huge profits, so we must see clearly before buying bird's nests, otherwise we may buy that kind of fake bird's nest. When we buy bird's nest, the first thing we look at is whether the bird's nest is dry enough, and if it is a real bird's nest, then it is dry enough to the touch.

When we buy bird's nest, we should also look at the shape of the bird's nest, if it is a real bird's nest, its surface should have that kind of brushed structure and can be clearly seen to be arranged in layers, and the texture on the bird's nest we can see very clearly, so if you encounter such a bird's nest, it is a real bird's nest, you can buy it with confidence.

When we buy bird's nest, we should also look at the base of the bird's nest, if it is a real bird's nest, then its base should be fluffy and natural, and the color of the base of the bird's nest and the color of the body are obviously different, such a bird's nest is a real bird's nest.

When we buy bird's nest, we should also pay special attention to the color of the bird's nest, but the real bird's nest is not the same in different climates, if it is the bird's nest in the rainy season, the color should be that beige, yellow and white, if it is the color of the dry season, it is the kind of yellow or gray, so we must pay attention to the color.

In addition to the above introduction of how to distinguish the real from the fake when buying bird's nest, there are also some methods that can be used to help distinguish between real and fake bird's nest, if it is a real bird's nest, the hair can reach 8 times, but if it is a fake bird's nest, some other things will be added, such as brushing glue, so the fake bird's nest hair is relatively small, so we also need to pay attention to this.

It is mainly distinguished from the appearance, taste, and feel. The shape of the real bird's nest is a filamentous structure, the color is light gray or light yellow, it will smell a faint fishy smell and Xylella, and it will be relatively dry to the touch. The surface of the fake bird's nest will be dense and shiny, the texture will be unnatural, it will smell pungent with a pungent smell of medicine, and it will feel sticky to the touch.

Soak the bird's nest in water, and take out the silk strips to pull after it is soft, if it is elastic, it means that it is a real bird's nest, otherwise, the elasticity is poor, and it breaks when pulled, it means that it is a fake bird's nest.

Fake bird's nest will produce crackling sparks when it burns due to impurities, while real bird's nest will not produce any violent sound and spark splash when burning.

The main components of bird's nest are protein, carbohydrates, a variety of amino acids (including arginine, lysine, cystine, neuraminic acid, etc.), as well as minerals and vitamins such as calcium, iron, and phosphorus.

1. Bird's nest should be a filamentous structure, and it is not a real bird's nest composed of a piece structure; Pure bird's nest is not completely transparent, but translucent, whether it is soaked or under light**.

2. Smell bird's nest has a unique fragrance, but there is no strong smell. Those with a special smell, fishy smell or greasy taste are fakes.

3. Touch a small piece of bird's nest and soak it in water, and pull it with silk strips after it is soft, the elasticity is poor, and it will break when it is pulled is a fake; Rubbing it with your fingers, it is also a fake if it can be kneaded into a paste without elasticity.

Fourth, burn the dried bird's nest slices with fire, if it is a real bird's nest, it will never produce any violent sound of splashing sparks.

Grade of Bird's Nest:

According to the texture, cleanliness and appearance of bird's nest, it can generally be divided into three levels: official swallow is a top grade, because it only paid tribute to the government in the past, it is called official swallow, there are fewer impurities, the color is slightly yellow and bright, it is like a loofah, it becomes soft after adding water, and it absorbs water and expands about 7 8 times, which is called "hair"; Mao Yan is the second, with more impurities than Guan Yan, darker color and brightness, worse "hair", and slightly lower value and **.

Grass swiftlets are the lowest in the three categories, and most of them are the second nesting nesters after the bird's nest is harvested, which contains more impurities, and needs to be rinsed and sorted to remove impurities, and the price is also the cheapest. There is a kind of red substance seeping out of the red rock wall attached to the bird's nest, and the whole body is dark red, called "blood bird's nest" or "red bird's nest", the yield is very small, it is a treasure in the bird's nest, and a few bird's nests have blood streaks, or are caused by the swallow's second nesting, and the natural blood bird's nest production is scarce.

The above content refers to People's Daily Online-Tips to quickly distinguish between real and fake bird's nests.

There are a lot of people who eat bird's nest, and in recent years, more and more, in addition to celebrities, pregnant women and other commonly used people, stay up late party, women who want to beautify and nourish their beauty have also begun to eat bird's nest.

1. The color of fake bird's nest is very white.

Natural bird's nest is beige, off-white, or even light yellow, the color is not very uniform, some are white, some are yellow, generally the bird's nest is white in the rainy season, and the bird's nest is yellow in the dry season. If the color of the bird's nest purchased is white and beautiful, and it will not change color for a long time, then 100% of it is bleached.

2. The surface of the brushed bird's nest is dense and bright, and the texture is unnatural.

The newly picked bird's nest is with swallow feathers and other impurities, if it is hand-picked, there are generally sparse seams on the surface of the body after picking the hairs. And the rubberized bird's nest meat is impermeable.

In addition to brushing glue, some unscrupulous merchants will also achieve the effect of increasing the weight of bird's nest by sticking and crushing, that is, cheap parts such as bird's nest crushed bird's nest.

There are also some sparse lamps, in fact, they are a lot of hairy swallows, the hairs are picked up after the sparse seams are very large, merchants through bleaching, sticking sticky silk, brushing glue, after shaping, can be made into a big pot to sell, specifically deceive Xiaobai!

3. The smell of fake bird's nest is strong and pungent.

Some bird's nest counterfeiting technology is superb, and it is impossible to see it purely from ** or entity, and it is necessary to distinguish the real from the fake by smell. The smell of real bird's nest has a faint egg white smell or a slight musty smell. The smell of fake bird's nest has the smell of chemical potions, gum or strong fishy smell.

4. The soaking time of fake bird's nest is long, and the hair head is inflated.

Natural bird's nest without brushing glue and not crushing can be soaked in clean water for about 4 hours, and the old bird's nest or bird's nest horn can be soaked for a long time, and can be torn into strips after soaking, and the soaking rate is generally 8-10 times that of dry bird's nest.

The bigger the bird's nest start, the better, some merchants will even advertise that the head is more than ten times, and you can filter it out when you encounter such a business. Because the base part of the bird's nest is the dirtiest, it cannot be completely cleaned after manual picking, so the naturally processed bird's nest, no matter how clean it is, there will be a little bit of bird's nest, which is unavoidable, especially near both sides of the bird's nest horn and the place where there are many cysts at the bottom.

How to distinguish the true and false of bird's nest:

1. When identifying bird's nest, you should first look at its shape, generally high-quality bird's nest is characterized by natural shape, thick and dense bird's nest silk, large and thick shape. On the contrary, those bird's nests with neat and beautiful shapes are made by hand-combining and pasting. The structure of the bird's nest should be that kind of filament, the lines are scattered and naturally untidy, and the lines of the bird's nest that have been artificially processed are arranged in a dense and neat manner.

In addition, the structure of the pieces is definitely not a real bird's nest.

2. Look at the thickness of the bird's nest, the normal bird's nest is generally thin and natural, with uneven cracks, those that are thicker and have no cracks, and the corners on both sides are flat and smooth, and they are often glued-coated bird's nests. There is also the smell of it, the real dried bird's nest will not have a strong smell, but have the smell of "ammonia". On the contrary, if the smell is special, fishy or greasy, it is a fake.

Only when it is well soaked in water, the stewed bird's nest will have the aroma of egg whites.

3. The simplest and most effective way is to "smell", and to treat the disease, we should also "look and smell", so we should pay attention to whether there is an ammonia smell before soaking the bird's nest, and whether there is a fishy aroma of egg white after stewing. The taste will be strong and strong, but it must be there, and it will not be fake.

Bird's Nest Introduction:

Bird's nest refers to the saliva secreted by some swifts of the swift family and several swiftlets of the genus Swiftlet, mixed with other substances. Also known as bird's nest vegetables, bird's nest roots, bird's nest can be divided into "house nest" and "cave swallow" according to the place of nesting, cave nest because of its mineral influence causes different colors, there are white bird's nest, yellow bird's nest, red bird's nest, and house nest only ivory white a color. The so-called "blood bird's nest" on the market is said to be made by artificially bred house nests through the "guano fumigation method".

Bird's nest is a nest formed by the saliva secreted by several species of swiftlets in the swift family and their down feathers. It is mainly produced in Southeast Asian countries such as Malaysia, Indonesia, Thailand and Myanmar, as well as the coastal areas of Fujian and Guangdong in China. Bird's nest is rich in sugars, organic acids, free amino acids, and sialic acid.

How to distinguish the true and false of bird's nest:

1. Hand touch to identify bird's nest: after soaking the bird's nest in water for about half a minute, rub the fingers repeatedly, take a piece of silk and pull, and break it when you pull it. (Do not rub the pure bird's nest vigorously, because the bird's nest is made of liquid solidification, and vigorously rubbing the bird's nest will still make the bird's nest mushy).

2. Nose smell identification of bird's nest: fake bird's nest has a special aroma that is not strong, and is accompanied by a greasy or chemical taste. The taste of pure bird's nest is a somewhat complex comprehensive taste, such as: sawdust, musty, moist, egg white (use the taste to distinguish real and fake bird's nest).

3. Visual identification of bird's nest: pure bird's nest has a translucent filamentous structure, which does not change after soaking or under the light, and fake bird's nest is mostly flake-like structure or unclear texture.

4. Fire identification of bird's nest: use fire to ignite the bird's nest slices, the fake bird's nest will produce brown sparks due to impurities in the burning, and then there will be a smell similar to burnt hair.

5. Distinguish bleached bird's nest: soak the bird's nest for half a minute, rub it with your hands a few times, the fake bird's nest will make your fingers stained with chemical taste, no bird's nest egg white taste, and the bubble rate of bird's nest after stewing is very low. Bleached bird's nest usually has a dull dead white color, and bleached bird's nest will cause the surface of the polysaccharide body of the bird's nest to disappear, and the bird's nest will become dull and unnaturally white.

The young hairs of bleached bird's nest are mostly brown.

1. Look. Bird's nest is generally half-moon-shaped and untidy, and there will be a depression in the middle, the texture is hard and brittle, translucent, and the section has a mirror-like luster, with a slight angular texture. In addition, of course, there will be some feathers in the bird's nest, and the less impurities the better.

Real bird's nest is a filamentous structure, if it is flaky and lumpy, it is a fake bird's nest. Bird's nests are thin and moderately weight, with an average of 6-8 grams per bird's nest.

2. Select. Commercially available bird's nests include blood bird's nest, white bird's nest, and yellow bird's nest. Yellow bird's nest is very rare; And like white bird's nest, white is better; Like a blood bird's nest, it is better to have a dark red color.

When buying, you can see that if it is a complete cup shape, it is better, and swallow strips, swallow cakes, and swallow silk are the second choice, especially if they are full of fakes.

3. Smell. Bird's nest has a relatively light taste when it is dried, and once it is soaked in water, it will have a fragrant aroma and a faint egg white flavor. If the bird's nest has a sour, chemical, fishy or greasy smell, it is a fake.

4. Touch. The main thing is to judge the dryness and humidity of the bird's nest. For bird's nests with high moisture content, bend the ends slightly by hand, and those with low moisture content are not easy to bend.

5. Dip. After soaking the bird's nest, if you press it by hand, it will be completely inelastic or the water surface will produce oil after soaking, which is a fake bird's nest. Then the soaked bird's nest is pulled by its silk strips, and the poor elasticity will be broken as a fake; If you rub it with your fingers, it has no elasticity, and it becomes a paste when you rub it, and it is also a fake; The water discoloration of blood swallow and yellow swallow after soaking is a fake.

As long as you master the above skills, then you can easily distinguish the authenticity of bird's nest, I hope it can help you.