How to tell the true and false bird's nest? Learn to reject fakes.

Understanding bird's nest is more important than eating bird's nest: four deadly sins of fake bird's nest

Bird's nest has always been a nourishing treasure that people like, and it has the effect of beauty beauty. However, when buying bird's nest, most consumers who don't understand bird's nest still express great confusion. Then, how to avoid being led by the business when buying bird's nest, distinguish the true and false bird's nest, and successfully buy high-quality bird's nest? Bian Xiao is here to provide you with some simple and practical skills to distinguish between true and false bird's nest:

Before introducing how to distinguish true and false bird's nest, we must know that bird's nest can generally be divided into three grades according to texture, cleanliness and appearance: official swallow is the top grade, so it is called official swallow because it only paid tribute to the government in the past. Guanyan has less impurities, slightly yellow and bright colors, and is loofah-like. After adding water, it softens, and its wool is about 6~8 times. Mao Yan is second, with more impurities than Yan Guan, deeper color and brightness, poorer "hair" and lower value and price; Grass swallows are the lowest among the above three categories, and most of them are the second nesting of swallows after the bird's nest is taken off. They contain more impurities, need to be rinsed to remove impurities, and the price is the cheapest.

In the bird's nest, there is a red substance oozing from the attached red rock wall, and the whole body is dark red, called "blood swallow" or "red swallow", with little output. "Blood Swallow" is a treasure in bird's nest. Blood swallow is not the result of Jin Siyan vomiting blood, because red hemoglobin will only be oxidized to dark brown methemoglobin. Blood Swallow is related to food and minerals in Jin Siyan, which contains more or less minerals, so its price is very high.

To put it more closely, the real bird's nest has an irregular half-moon shape, about 6.5- 10 cm long and 3-5 cm wide, and it is sunken into a pocket shape. One side attached to the rock is flat, and the outside is slightly convex. The mucilage condensed layer on the attachment surface is arranged neatly and undulated, and there are rough filaments in the nest. Hard and brittle, slightly horny in cross section, soft and swollen when entering water.

There are four ways to identify the authenticity of bird's nest: observing, smelling, soaking and stewing.

look

The real bird's nest should be a filamentous structure, and the flaky structure is not a real bird's nest; Pure bird's nest is not completely transparent, but translucent, whether it is soaked or viewed under light.

Wen'er

Bird's nest has a unique fragrance, but it has no strong smell. Anything with a special smell, fishy smell or greasy taste is fake.

Sanpaofa

The water quality of real bird's nest is still clear after soaking in water, while the fake bird's nest is turbid after dissolving in water because it contains other components. In addition, the real bird's nest will swell after soaking in water, and the soaked bird's nest will be torn into strips and stretched. If the elasticity is poor, it may be a fake bird's nest when it is pulled.

Sidao stewed dishes

The real bird's nest will have a strong protein fragrance after stewing, and the taste is silky, elastic, crystal clear, delicate and smooth, and full of fragrance. If the stewed bird's nest has fishy smell or other miscellaneous smell or is mushy, you need to be vigilant. Of course, this is also related to the length of stewing.

In addition, we can also identify the authenticity of dried bird's nest by burning. Real bird's nest will burst slightly after fire, and it will be foamed after melting, smokeless, tasteless and grayish white; However, the fake bird's nest burst and produced sparks after the fire, emitting black smoke and burnt smell, and its ashes were black and lumpy.

At the same time, Bian Xiao listed four deadly sins of fake bird's nest for everyone:

1. Brush the bird's nest with glue and paste.

Brush glue and paste for bird's nest is also the most concerned issue for most nest friends. So, why do you want to brush the glue and paste?

Of course, that's because brushing glue can solve the problem of unsightly natural gaps after plucking bird's nest; Moreover, the weight has increased a lot after brushing and hanging, and it can be sold at a high price. This is the same reason that red dates beat erythropoietin and chickens beat hormones. Even if the extra bird's nest is on your bill, you have to pay for it.

Bian Xiao thinks that everything you eat should be as natural as possible. What do you think?

2. About adding water to bird's nest

Why do they add water to bird's nest? Their purpose is actually very simple: first, to prevent the bird's nest from breaking; The other is weight gain. Some nest friends who bought water-sprayed bird's nest reported that the bought bird's nest dropped a few grams after a period of time, which was the result of water evaporation. However, in addition, spraying bird's nest is potentially harmful to human body. Bird's nest with high water content is easy to get moldy, and eating moldy bird's nest is harmful to your health! Therefore, the storage of bird's nest must pay attention to moisture!

3. About the restoration of fake bird's nest

As the name implies, bird's nest pieces are pieces, some of which are fragments of bird's nest itself. The biggest fear is that black-hearted merchants stick some broken tremella or other substances with glue, thus increasing the weight of bird's nest.

Four. About imitation bird's nest

There are many imitations of bird's nest in the bird's nest market, such as imitation with seaweed; Imitation with tremella; Agar imitates bird's nest. Bian Xiao thinks that this kind of bird's nest can't be called bird's nest at all, so we must polish our eyes and tell it!

In addition, many bird's nests on the market are not stored at constant temperature and are not cold-chain during transportation.

Finally, Bian Xiao has to say that there is still a big difference between true and false bird's nest. If you want to know more about this problem, the best way is to choose a furry swallow yourself. If you try, you will know that this is the cost of pure manual work.

But the efficiency of chemical depilation and bleaching can be calculated in kilograms. This will not only destroy the effective components of bird's nest, but also the harm of heavy metal residues.

Everyone always likes to ask: why are they all bird's nest, and the price difference is so big? In this fast-paced era, have you ever thought that all handmade things are more expensive? Bian Xiao thinks so, so the natural bird's nest picked by hand must be very expensive, but it must be worth it. Just like Xiyan bird's nest, each one is picked by hand, and it is natural and pure after soaking, so it is safe to eat!