Of course, choosing a good bird's nest requires certain skills. It does not mean that the more expensive the bird's nest, the better. First of all, you have to pay attention to the density of the fiber. The denser the fiber, the better. The color should be slightly yellowish and shiny. The appearance should also be large and complete. 1. The denser the fiber, the better The color is transparent with a slight yellow hue, shiny, and has the fragrance of bird's nest. The fibers on the bird's nest should be clearly visible, with clear texture and varying thicknesses. The denser the better. The fibers inside the bird's nest are messy and loose. 2. Beware of coating processing Most high-quality bird's nests have undergone a plucking process, and there are obvious gaps between the silk threads. Although the denser the bird's nest, the better, it is definitely not airtight. The surface of the bird's nest after processing and coating is reflective and dense. It not only affects the quality, but also increases the weight of the bird's nest. 3. The appearance should be large and complete The shape of a top-quality bird's nest should be complete and large (about the size of three fingers folded together). If the swallow builds a nest on the beam of the house, the nest will be in the shape of a boat. If the swallow builds a nest in the corner of the wall, the nest will be in the shape of a triangle. The interior is clearly defined. In addition, there are also processed ones, in strip and cake shapes. 4. Send a large amount After being soaked in water, bird's nest can expand 3 to 5 times on average, while higher-quality ones can even expand 5 to 8 times. After soaking in water, bird's nest can expand 3 to 5 times on average. If the delivery process is done well, even at a good level, it can be as good as 10 deliveries. 5. A small amount of young hair After the bird's nest is expanded, you will see a small amount of fine hair. If you find that there is no fine hair and it is extremely clean, it is very likely that it has been rinsed artificially. |
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