How can I tell if a bird s nest is genuine?

Now there are some unscrupulous traders on the market, using pig skin and white fungus to make bird's nests, and some bird's nests are bleached with bleaching powder, which is particularly white, and the real bird's nest should be slightly yellow, like the bird's nest of a true pure bird's nest, so you must pay attention to it when choosing bird's nest.

How to distinguish the authenticity of bird's nest?

1: Pure bird's nest is not completely transparent but translucent after soaking or under light. Two:

Natural bird's nest will have a fishy smell and a smell of Trichoderma, so be careful if you smell the potion. Three: Take a small piece of bird's nest, soak it in water and pull it softly, and pull it with a silk strip.

Generally, the shape of the bird's nest is relatively natural, and it is also relatively dense and thick, and the lines are also filamentous, and at the same time very thin, and there will be some cracks.

When purchasing, you should ask the corresponding professional to help you identify, after all, you don't know much about this aspect, but you want to buy bird's nest to supplement the body's nutrition.

First of all, we must touch it with the feel, really, the armpits will be very large to the touch, and there will be no sticky feeling. And we can also smell it, if we smell a particularly strong smell, it means that this bird's nest is fake, so it cannot be purchased.

In fact, we can put the bird's nest into the pot and boil it, and the content of the bird's nest is significantly reduced, then it means that this is a fake bird's nest with a particularly high water content.

The 6 ways to distinguish between real and fake bird's nests are as follows:

First, the choice. Yellow bird's nest is rarer; White bird's nest color is white; The blood bird's nest is preferably dark red. Commercially available bird's nests include blood bird's nest, white bird's nest, and yellow bird's nest. Among them, yellow bird's nest is relatively rare; White bird's nest color is white; The blood bird's nest is preferably dark red.

When buying, it is better to have a complete cup shape, and swallow strips, swallow cakes, and chaotic swallow silk are the second choice, especially if they are full of fakes. At the same time, experts do not advise consumers to buy blood bird's nest, because the production of blood bird's nest is scarce and the profit is high, and the proportion of fakes is higher.

2. Look. Bird's nests are generally untidy half-moon shaped, with a concave middle into a pocket shape. Bird's nest is generally an untidy half-moon shape, the middle part is concave into a pocket shape, the texture is hard and brittle, translucent, the section has a mirror-like luster, and a slight angular texture.

In addition, the fewer feathers and impurities entrained in bird's nests, the better. Bird's nest should be a filamentous structure, and it is not a true bird's nest that is composed of sheets and blocks. Bird's nests are thin and moderately weight, with an average of 6-8 grams per bird's nest.

3. Touch. 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. 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.

Fourth, smell. After wetting, it should have a characteristic fragrant aroma and a faint egg white flavor. The taste of bird's nest should be very light when it is dry, and it should have a unique fragrant aroma and a faint egg white flavor after wetting. Scarring with a sour, chemical, fishy or greasy smell is a fake.

5. Immersion. After soaking, if the bird's nest is completely inelastic or oil is produced on the water surface after soaking, it is a fake bird's nest. After soaking, if the bird's nest is completely inelastic or oil is produced on the water surface after soaking, it is a fake bird's nest.

Take a small piece of bird's nest and soak it in water, take the silk strip and pull it after it is soft, the elasticity is poor, and the one that breaks when pulled is a fake; Rubbing with your fingers, if you don't have elasticity to make a paste, it's also a fake; The water discoloration of blood swallow and yellow swallow after soaking is a fake.

6. Burning. Lighting the dried bird's nest slices with fire, loud banging buttons, and splashing sparks is a fake bird's nest. Ignite the dried bird's nest slices with fire, if it is Yimei pure bird's nest, it will never produce any violent sound of splashing sparks.

1. Look at the texture. 2. Look at the weight. 3. Look at the color. 4. Look at elasticity. 5. Look at the feel. 6. Look at the viscosity.

1. Look at the texture. Real bird's nest is clear and has different thicknesses, and there will be gaps on the surface. The surface of the fake bird's nest is not clear, there are no gaps, and it has been treated with glue.

2. Look at the weight. Real bird's nest is lighter in weight, and fake bird's nest is of poor quality and has a heavy feel.

3. Look at the color. The surface of real bird's nest is ivory or pale yellow, and the surface color of fake bird's nest is whitish.

4. Look at elasticity. After the real bird's nest is soaked in water, it is full of elasticity after pulling. The elasticity of the fake bird's nest is not good, and it will break when it is pulled.

5. Look at the feel. Real bird's nest feels drier to the touch. Fake bird's nest feels moist to the touch and has a sticky feel.

6. Look at the viscosity. When you buy bird's nest, you can shake the bottle, real bird's nest can shake with the shake of the bottle, but fake bird's nest is not easy to shake.

The brand is secondary, the key is to buy the truth, Tongrentang Yanzhiwu brand is not ** some time ago, selling poisonous blood bird's nest, whether it is to eat it yourself or give it away, it is recommended to buy white bird's nest, natural color, the following will teach you how to identify the authenticity of bird's nest:

Generally, the authenticity of bird's nest should be identified from four aspects: asking, seeing, soaking, and touching.

The first trick is to ask - bird's nest below 30 yuan per gram is "unreliable".

Consumers want to buy assured bird's nest, there is a basic way to judge: if the market of bird's nest is less than 30 yuan per gram, consumers will be suspicious. "After the bird's nest is picked from the bird's nest or rock wall, it has to go through the process of removing impurities and picking feathers before it can be made into the finished bird's nest.

In Malaysia, the first level of bird's nest that has just been picked and untreated has reached more than 10 yuan per gram, plus the cost of picking hair - a worker can only pick 1-2 kilograms of bird's nest in a month, and the market price is usually more than 30 yuan per gram, including customs declaration costs, inspection and quarantine costs, normal wear and tear and company operating costs.

The second trick is to see - a bird's nest without a gap is a fake bird's nest.

Due to the dehairing process, it is impossible for the bird's nest to be free of gaps, and the general seamless ones are the bird's nests with heavy gluing.

Bird's nest is natural, it can't be perfect, and it can't be the same every bird. If each bird's nest is white, beautiful and identical, it is very likely to be bleached bird's nest or even pure fake bird's nest.

In addition, you can also take the bird's nest to look at the light, and the real bird's nest can clearly see a trace of lines.

The third trick is foaming - it is normal for the foaming rate to be too high or too low.

Some merchants claim that the foaming rate of their bird's nest is more than 12 times. Some pure bird's nests are introduced in their brochures that the normal level of bird's nest foaming rate is 7-9 times. It is not normal for the soaking rate to be too low or too high, and the soaking rate of some adulterated substances is much larger than the above range or much lower than the above range, this kind of bird's nest is abnormal bird's nest.

Bird's nest will expand after soaking in water, and after being soft, take the silk strip and pull it, the elasticity is poor, and it will break when it is pulled. Rubbing with your fingers, if you don't have elasticity to make a paste, it's also a fake; After soaking in water, the water quality of real bird's nest is still clear, while fake bird's nest has other components, which cause the water color to be turbid after being dissolved in water.

The fourth trick is to touch - the real bird's nest is obviously rough to the touch.

Real bird's nest is formed from swiftlet saliva and has a distinctly rough hand feel to the touch, while fake bird's nest is very smooth to the touch.

The stewed bird's nest has a sweet flavor of egg white, and it is very smooth in the mouth.

Hope it can help you, good luck to buy real bird's nest.

Hand-picked bird's nest is essentially different from bleached bird's nest, you can see that its color is very natural and transparent, and it is impossible for every natural thing like bird's nest to be the same color, because the light and humidity in the bird's nest will affect its color, so when buying outside, if someone else takes out a plate of bird's nest and the color of each one is the same is very unnatural white, you should pay attention. The chemical reagent of bleached bird's nest will bleach the bird's nest, and it can also dissolve the fine feathers in it, which is very different from the hand-picked bird's nest in terms of cost and food safety, which is one of the reasons why some online bird's nests are only sold for more than ten or twenty.

It is recommended that those who do not know how to distinguish bird's nest require merchants to provide import certificates, licenses, inspection and quarantine reports (required for each batch), and you can also find several bird's nests for comparison. Only when the real thing is compared together, the head is compared after soaking, and the taste is compared when cooked, the quality of bird's nest can be seen. After choosing, it is recommended to find a reliable seller to buy for a long time, not to buy from east to west.

See: Xin Yan Bird's Nest.

How to distinguish the authenticity of bird's nest?

I'm sorry to tell you that it's fake. The color is so uniform. The color of the real blood swallow will not be so uniform.

You put it in the water to see if it will fade and if there is any fishy smell. Generally, the soaking time of bird's nest is about 4 hours, and the simmering time is about 30 minutes. You can see how long it takes for this blood swallow to soak and how long it takes to simmer before it can be boiled. If it takes a long time, it means that it is fake.

Real bird's nest smells slightly fishy, and when stewed, it will have a faint albumen aroma. The selection of bird's nest should be dry and cool, and it must not be dry if it feels soft and sticky in your hand, and the bird's nest of Shangguan Bird's Nest is generally at 90%-95% dryness.

The ways to distinguish the authenticity of bird's nest are: look at the color, smell the taste, look at the silk, check the hair, touch the silk, and taste the taste.

1. Look at the color: natural bird's nest is gray-white, yellow-white. The body of the bleached bird's nest is very white, and the fine fluff is also difficult to see, because the fluff can also be bleached.

2. Smell: Natural bird's nest has a fishy smell and a trichoderma smell, and there is no smell of medicine.

3. Bird's nest filament: Bird's nest is half-moon spherical or boat-like, with net-like cysts on the inside, and the structure of the nest filaments is irregular.

4. Hair inspection head: The soaking rate of bird's nest without glue is relatively large, and the soaking is clear and will not clump.

5. Touch the silk strips: After soaking, the silk strips of good quality have good elasticity and are not easy to break or form a paste.

6. Taste: After stewing, natural bird's nest has a clear protein fragrance, crystal clear, delicate and smooth taste, elastic, no fishy smell, gelatin smell, and will not become a rotten paste.

7. Look at transparency: Since bird's nest occurs according to the mucus metabolized out, the appropriate way to distinguish real bird's nest is also to see the light translucency. The light leakage level of real bird's nest is very high under ambient light, and the viscose on the inside of the bird's nest can be clearly seen, while the light leakage level of fake bird's nest is dull and disfigured.

8. Look at the color: the whiter the bird's nest, the more beautiful it is, and the greater the probability of imitation. Real bird's nest is not beige white, only some yellow in the white.

Therefore, suppose you have to pay attention to the bird's nest that is white and has no variegation. On the other hand, the color of the same bird's nest is different, and there are shades, while the color of the fake bird's nest tends to be the same.

How to distinguish the authenticity of bird's nest?

It is difficult for ordinary consumers to judge the authenticity by appearance, and the most effective and reliable way is to buy a regular bird's nest with a traceability code to ensure that one lamp and one code can be officially verified by the National Academy of Inspection and Quarantine. Whether pregnant or as a tonic, food safety is paramount. Bird's nest without traceability code cannot guarantee safety, and it is recommended not to buy it.

**Welcome to communicate with me.