How to distinguish the grade of bird's nest? How to maintain bird's nest?

The grade and quality of bird's nest are mainly compared from the following aspects

Based on texture comparison, the following standards are used to evaluate the grade of bird's nest:

Bird's nest cup They are distinguished by "dense, fine, and sparse". The denser ones are classified as top-grade Yanzhan, while the sparser ones are classified as second-class ones. Generally, the calyx-shaped intact fiber is classified as the first grade, and the calyx-shaped fiber is not compact as the second grade.

According to the calyx shape, the calyx shape is complete and well-proportioned.

Compared by bird's nest type, the bird's nest quality is divided into official bird's nest, feather bird's nest, and grass bird's nest.

Guan Yan: First-stage bird's nests with a complete cup shape and few impurities are usually called "official swallows" and "tribute swallows". This kind of bird's nest is the most nutritious, has less impurities and has a good taste. There is also a traditional way of naming the first-phase high-quality white swallows as official swallows.

Feathered bird's nest: a bird's nest containing more bird feathers, or a second- or third-stage bird's nest. The nutritional content is not as good as that of official swallow, and it has many impurities and is difficult to handle.

Grass swallow: a bird's nest built in the grass, mixed with a large amount of grass clippings, and is of the worst quality.

Based on the color of the bird's nest, the bird's nest can be divided into white bird's nest and blood bird's nest according to its color. Comparing the quality and price of bird's nests is actually very controversial. Many data show that the bird's nest of the first-stage white bird has the highest content of specific ingredients, and the difference between the two is not very different. However, because the production of blood swallows is very rare and has special texture and taste, the market price is sometimes slightly higher than that of white swallows.

Maintenance of bird's nest: Generally, if it is very dry, it can be stored at room temperature. If it is slightly moist, it needs to be stored in the refrigerator. This kind of bird's nest will grow mold at room temperature. After all, it is protein. .

If the bird's nest is stewed, it needs to be placed in the refrigerator