Sabah Yan Zhiwan friendship tips: 1, look at the shape: the characteristics of high-quality bird's nest are natural shape, thick and dense swallows, filiform structure, and irregular lines. However, the artificially processed bird's nest has fine and neat lines and uniform lamp shapes. The flaky and massive structure is not a real bird's nest.

2, look at the color: pure bird's nest, whether dry or soaked, is not completely transparent under the light source, but translucent. The color of the bird's nest is natural, showing natural ivory white, beige or light khaki.

3, look at the thickness: bird's nest is normally thin and natural, with uneven cracks, and the swallowtail coated with glue is often thick and without cracks.

The shape is neat and unnatural.

4, smell: the real dry bird's nest will not have a strong smell, but it has the smell of ammonia. After fully soaking,

Stewed bird's nest has a fragrant protein flavor, and the egg white flavor is strong and light, but it must be there, so it won't be fake. Those with special smell, fishy smell, greasy smell, sour taste or disinfectant taste are fakes.

5, soaking hair: take a small piece of bird's nest and soak it in water. If the bird's nest is large, it is a real bird's nest, but if it is not large and gradually melts and sticks to the hand, it is completely inelastic when pressed or pulled, it belongs to a fake bird's nest. After the foam is soft, take the silk strips and pull them. If the elasticity is poor, they will break. If you rub them with your fingers, they will be fake bird's nest. The true bird's nest is clear and not turbid after soaking in water.