Bird s nest looks at the quality of bird s nest in this way, how to see the quality of bird s nest

High-quality bird's nest should feel dry to the touch. Wetter bird's nests contain more moisture and can become moldy if not stored properly. Pay attention to the loss rate and the markup on the packaging. It should be purchased at a reputable local store, and the country of origin and quality assurance certificate should be clearly understood.

Indonesian bird's nest accounts for 80% of the world's bird's nest production, and the nest factory Indonesian bird's nest is clean and full, delicate and lubricated, and fragrant.

For non-laboratory identification of bird's nest, please grasp the following points:

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 no strong smell. Those with special smell, fishy smell or greasy taste are fakes;

3.Touch: 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 will break is a fake; Rubbing it with your fingers, it is also a fake if it can be kneaded into a paste without elasticity.

4.Burning: Use fire to ignite the dried bird's nest slices, if it is a real bird's nest, it will never produce any violent splashing sparks.

The color of the high-grade instant bird's nest is crystal clear, and there is not much water after tilting the instant bird's nest bottle at 45 degrees, and the bird's nest is crystal fine after scooping it out. High-quality instant bird's nest (white bird's nest) has a rich and fragrant aroma of unique bird's nest collagen after opening. Because the swiftlet eats seaside algae and insects, the flavor of the stewed bird's nest is not as strong as that of the white bird's nest, but the mineral content is higher.

Instant bird's nest stewed with exquisite craftsmanship has a smooth and elastic taste. Natural ready-to-eat bird's nest should be labelled as free of preservatives and additives.

1. Look at the certification documents for the import of bird's nest, there is an inspection certificate and a health certificate issued by the China Inspection and Quarantine Bureau, and the quality will be guaranteed.

2. Select. Look at the color and shape of the bird's nest, the color of a good white bird's nest is ivory white, and the particularly white one is likely to be bleached, as for the shape of the bird's nest, it is 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 is regarded as a good cup shape. And a good bird's nest cup has gaps, because in the process of artificial picking of bird's nest, there will be some gaps formed, and these gaps are originally swallow fine hairs or some other impurities, so it is normal to have gaps.

3. Smell the smell.

Good bird's nest has a faint egg white flavor, especially after cooking. Those with a sour, chemical, fishy or greasy smell are fakes.

4. Water content.

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. Soaking. There is a small amount of residual bird's nest after soaking, and it is impossible to completely pick the feathers completely by hand. After the bird's nest is soaked and soft, the silk strip is pulled, the elasticity is poor, and the one that breaks when pulled is a fake; Rubbing it with your fingers, it is also a fake if it can be kneaded into a paste without elasticity. After soaking in water, the real bird's nest has no oil stains or mucus, the shape is silky, the length and thickness are different or clumpy and irregular, the color is light milky yellow, not too white and translucent.

Look at the shape: Look at the shape of the bird's nest: The characteristics of high-quality bird's nest are that the shape is natural, the bird's nest silk is thick and dense, and the shape of the bird's nest is large and thick.

The neat and beautiful shape of bird's nest is made by artificial combination and pasting (such as using egg white, gelatin, starch and other substances as binders). Look at the lines of the bird's nest: the structure of the bird's nest should be a filamentous structure, and the lines are naturally untidy, while the lines of the bird's nest that have been artificially processed are arranged in a dense and neat manner.

And what is made up of a piece structure is not a real bird's nest.

Look at the color: Pure bird's nest, whether it is dried or soaked, is not completely transparent under the light source**, but appears translucent. The color of real bird's nest naturally presents natural ivory white, light beige and light earth yellow, and the color distribution is uneven, and the surface is relatively rough; Fake bird's nests are artificially bleached, the color is uniform and beautiful, and the surface is neat and smooth.

The color of the same bird's nest is different, there are different shades, and the color of the bird's nest is also different, while the color of the fake bird's nest tends to be the same after bleaching. House nests have good light transmittance, while fakes made of Malay gum or pig skin have low light transmittance, and pig skin is even completely opaque, but there is oil slick after it is launched. The color of cave swallows is dark yellow and naturally dark, with different colors around the edges, and gradually darkens from one side to the other.

Look at the thickness: Bird's nest is normally thin and natural, with uneven cracks, and the rubber-coated bird's nest is often thicker and no cracks, and the corners on both sides are flat and smooth. Fake bird's nests processed with Indonesian tapioca flour are heavier and whiter, with dense bird's nest silk and unnatural shape.

Smell: Real dried bird's nest will not have a strong smell, but will have the smell of "ammonia". Those with special smell, fishy smell or greasy taste are fakes;

Only when it is fully soaked will the stewed bird's nest have the aroma of egg whites. Note that it may only be a protein scent, not some fruit, coconut, etcAnd so on. So the simple and effective way to identify bird's nest::

One sniff. There is an ammonia smell (also known as fishy smell and chemical smell) before soaking, and 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.

It should be noted that the smell of bird's nest bleached with hydrogen peroxide is seriously pungent, that is, the smell of disinfectant water in the hospital, which is completely different from the "ammonia smell". Malay glue has a sour taste. ）

Hand feel: Bird's nest should feel dry to the touch. Wetter bird's nests have more moisture and feel sticky to the touch, while bird's nests are softer to the touch and will become moldy if not stored properly.

Water soaking: Take a small piece of bird's nest and soak it in water, if the bird's nest is several times larger, it is a real bird's nest, but if it is not several times larger and gradually melts, and it is sticky, pressed or pulled without elasticity at all, it is a fake bird's nest. After the bubble is soft, take the silk strip and pull, the elasticity is poor, and it is a fake if it is broken when it is pulled, and it is a fake if you rub it with your fingers, and there is no elasticity to rub it into a paste.

The water soaked out is clear and not turbid, which is a real bird's nest.

1.Look: The natural bird's nest should be a filamentous structure with a few gaps, if it is airtight and reflective, it is a problem bird's nest, the color is beige or beige, and the pure white may be bleached by the potion.

2.Touch: natural bird's nest, the body is uneven, the hand feels rough, and there are cracks of different sizes on the surface.

3.Bubble: The water of natural bird's nest is clear after soaking, and the general soaking rate is eight times, with few small fine hairs. If you can't soak it, the water will be turbid after soaking, and there is no small fine hair, which is a problem bird's nest.

4.Stew: After the natural bird's nest is stewed, it is crystal clear and silky, with a faint egg white flavor, and the green skin is as smooth as Q bomb.

5.Illumination: Shine on the light of natural bird's nest filamentous texture, good light transmittance, and have a sense of hierarchy. Fake bird's nest, the filamentous texture of the bird's nest is blurred, the light transmittance is poor, and there is no sense of layering.

Generally speaking, eating more bird's nest in daily life can fully absorb the protein and some trace elements contained in bird's nest, this water-soluble protein component can help the human body repair after illness, promote the growth of the human body, and can also increase the body's resistance. At the same time, bird's nest also has the function of moistening the lungs, and it also has a certain soothing effect on cough caused by dry heat in the lungs. From the point of view of appearance quality, real bird's nest can see clear silk lines, if all are white and complete, it is likely to be fake bird's nest, and at the same time you can smell the bird's nest, real bird's nest has a unique aroma, not a pungent taste, touch it with your hand, you can feel a little rough feeling, this is the real bird's nest.

The quality of bird's nest can be identified by looking, smelling and touching, and a really good bird's nest must look like it has a trace of lines, smells with a faint aroma, and feels a little rough to the touch.

1. Comparison by texture.

There are probably the following criteria for evaluating the grade of bird's nest:

1. The "dense, fine, and sparse" of bird's nest cups are distinguished, and the denser ones are classified as top-level bird's nests, and the sparse ones are second-class. Generally, the compact fiber of the complete fiber is the first grade, and the fiber of the incomplete shape is not compact as the second grade.

2. According to the division of the bowl shape, it is better to have a complete and uniform bowl shape.

2. Comparison according to the type of bird's nest.

According to the quality of bird's nest, it is divided into official bird's nest, hairy bird's nest, and grass bird's nest.

1. Official bird's nest: The bird's nest in the first stage with a complete shape and few impurities is usually called "official bird's nest" and "tribute bird's nest". This bird's nest is the most nutritious, with few impurities and a good taste. Tradition also has a way of calling the first high-quality white bird's nest as the official bird's nest.

2. Bird's nest: a bird's nest containing more bird's nest, or second and third bird's nests. The nutritional content is not as good as that of the official swallow, and there are many impurities, which is not easy to handle.

3. Grass swiftlet: a kind of bird's nest built in the grass, mixed with a large number of grass clippings, the worst quality.

3. Compare according to the color of bird's nest.

Bird's nest can be divided into white bird's nest and blood bird's nest according to its color. In fact, there is a lot of controversy about comparing the quality of bird's nest with **. A lot of data shows that the bird's nest unique ingredient content of white bird's nest in the first stage is the highest, and the difference between the two is not very large.

However, due to the fact that the production of blood bird's nest is very scarce and has a special texture and taste, sometimes the market ** is slightly higher than that of white bird's nest.

How to identify good and bad bird's nests? How to judge the quality of bird's nest? Bird's nest classification types.

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.