Bird's nest is a good tonic for each of us. The name sounds very advanced, but in fact, it is the saliva of swallows. Eating authentic bird's nest can not only improve our health, but also make our female friends' skin more moist and smooth. Bird's nests are bought by Jin, but they are eaten by gram. Generally speaking, adults eat three grams each time, three times a week, and 500 grams of bird's nest can be eaten for 55 weeks, that is, a year. Ordinary families can also eat! So how to distinguish true and false bird's nest?
1. Bleached bird's nest
The bleached bird's nest is obviously white to the naked eye, and there is no gradient and hierarchy in color, which can be seen at a glance. Well, for the carefully camouflaged bird's nest, we can take it out by immersing it in water and rub it with our thumb and index finger for several times after half a minute. Our fingers will stick with the smell of chemicals. In addition, the bleached bird's nest has a small rise rate after stewing, is easy to melt water, and has no unique natural egg white flavor of bird's nest.
2. Coated bird's nest
In the process of making the bird's nest into a bird's nest, there will be small holes on the surface. Some businessmen use food, such as cassava powder, fish glue powder, eggs, gum and paste as coatings. Through these small holes, the bird's nest looks bright and thick, especially the bottom of the bird's nest will be very thick and difficult to break. We can immerse the bird's nest in water and remove it. After half a minute, rub it with your fingers for several times. The authentic bird's nest should be smooth, while the coated bird's nest will be sticky because of the coating. In addition, the protein content of natural bird's nest is as high as 50%, so it smells like egg white, while glued bird's nest will smell chemicals.
3. Bird's nest
According to the types of nesting swallows, they are divided into three categories: Official swallows, hairy swallows and grass swallows. Guanyan is a top-grade bird's nest, and its nutritional value is higher than that of Maoyan and grass swallow. However, because the concave surface of the Guanyan's swallow cup has a layer of reticulated Guanyan nest strips, the bad merchants will replace it with the strips of wool swallow or grass swallow with similar shapes. How to distinguish? Guan Yan is used to building nests with pure saliva, so there are few impurities and the color is slightly yellow. It is translucent when viewed in the light. It becomes soft after adding water and can expand 7-8 times. Maoyan is used to nest with feathers mixed with saliva. Cao Yan likes to nest with weeds mixed with saliva. Therefore, there are a lot of impurities, the color is dark, almost opaque, weak water absorption and little expansion after immersion. Choosing a bird's nest requires careful observation. You should also be familiar with various counterfeiting routines and choose a high-quality bird's nest.