Bird's Nest is a nest made of saliva secreted by several species of Jin Siyan swift and its down. Location: Malaysia, Indonesia, Thailand, Myanmar and other Southeast Asian countries and coastal areas of China, Fujian and Guangdong.

Bird's nest is rich in sugars, organic acids, free amino acids and sialic acid, and has the functions of nourishing yin, moistening dryness, tonifying middle energizer and benefiting qi. As a kind of high-grade tonic with the same origin of medicine and food, it is deeply loved by consumers at home and abroad.

The main nutrient in bird's nest is protein, which contains 1 essential amino acid (lysine) and 3 kinds of conditionally essential amino acid, while human body needs 8 kinds of essential amino acids and 13 kinds of conditionally essential amino acid.

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1, look: the middle of bird's nest is filiform structure, and the corner of bird's nest is flaky structure; Pure bird's nest is not completely transparent, but translucent, whether it is soaked or watched under the light.

2. Smell: Bird's nest has a unique smell, similar to lime smell, but without strong smell.

3. Touch: Take a small piece of bird's nest and soak it in water. When it's soft, bring the silk and pull it. Poor elasticity. If it is pulled, it is a chemical processed product; If you rub it with your fingers, it is also a chemically processed product that can be rubbed into a paste without elasticity.

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