Natural bird's nest grams are usually between 4-10 grams, where 10g is already rare. 6-7 grams of bird's nest is the most common, with the majority between 5-8 grams.

Bird's nests are made by swiftlets, and each swiftlet makes its own nest according to its own preferences and wishes, so the shape of each bird's nest is different; each swiftlet makes a different size of nest due to its different body size and saliva secretion. The larger the marigold, the higher the price of the bird's nest. Normally, 5-6 grams per day for adults and half the amount for children as adults.

Buying bird's nest should pay attention to the following points:

1. Look: Bird's nest should have a filamentous structure, and the one made up of pieces of structure is not a real bird's nest; pure bird's nests, no matter after soaking or watching under the light, are not completely transparent, but translucent.

2. Smell: Bird's nest has a unique fragrance, but no strong odor. Those with peculiar odor, fishy or greasy taste are fakes.

3, touch: take a small piece of bird's nest to soak in water, soften it and then take the silk strip and pull it, the elasticity is poor, and it will be broken as soon as you pull it for fakes; rub it with your fingers, and there is no elasticity that can be rubbed into a paste-like shape, it is also fake.

4. Burning: Use fire to ignite the dried bird's nest pieces, if it is real bird's nest, it will never produce any violent sound of splashing sparks.

Refer to Baidu Encyclopedia - Bird's Nest

For the above, please refer to? Baidu Encyclopedia - Bird's Nest