Grading criteria for bird s nest How to identify a good bird s nest

Generally, bird's nests can be divided into the following grades according to their shape: bird's nest, bird's nest, bird's nest horn, bird's nest cake, and bird's nest crush.

1. Bird's nest: Bird's nest with stray hair removed and retained in shape is the best grade. The complete bird's nest can also be divided into different grades according to the size of the bird's nest and the raw materials, size of the bird's nest, hair, taste, etc.

2. Bird's nest sticks: Many whole bird's nests are crushed in the process of picking, packing, or transporting to become bird's nests. The bird's nest strips of ginseng source are not the common long swallow strips (swallow silk) in the market, but the wide swallow strips, which can be vaguely seen in the original shape of the bird's nest, full of dryness, and are fragile when they are basically pressed, with tight fibers, high cleanliness, good hair and rich gelatin.

However, due to the fact that it is not a bird's nest, it is still lower than that of a bird's nest.

3. Bird's nest: It is the part of the swiftlet used to fix the two ends of the bird's nest, and it is the "load-bearing beam" of the bird's nest. The swallow horn part is the first part of the swiftlet nesting, with high saliva concentration, hard and thick, not easy to soak, so the soaking time can be longer than that of bird's nest or bird's nest.

4. Bird's nest: The raw material is a bird's nest (nest) with a lot of impurities, which is made of bird's nest silk and bird's nest crushed after manual picking and machine cleaning, and then pressed with a model. During the production process, it is possible to add chemicals to clean and use edible glue to bind.

5. Bird's nest crushed: It is a fine piece of bird's nest that is crushed during picking or transportation, and all parts are broken, so the taste of bird's nest is poor.

Precautions for purchasing bird's nest:

First, the place of origin should be fixed. The place where swiftlet grows affects the quality of bird's nest production, the more impurities such as dust, the darker the bird's nest produced by serious air pollution, the higher the rainwater and forest coverage area of the production area, the better the bird's nest head and the higher the quality. Many well-known bird's nest brands in China are from the above origins.

Second, look at the hair of bird's nest. Bird's nests harvested at different times also have different "hairs".

3. See if the bird's nest is clean. The fewer fine hairs, the better.

Fourth, pick the lamp type. The thinner the head and feet at both ends of the bird's nest, the more beautiful it is.

5. See if the bird's nest is dry and lightweight. It is dry and contains less water as the top grade. High-quality bird's nest should feel dry to the touch. Wetter bird's nests have more moisture and can become moldy if not stored properly.

6. Stewed bird's nest. Good bird's nest is resistant to stewing, and the bird's nest that is hand-picked is not easy to appear watery, and there will be a strong protein fragrance after stewing, which is an important indicator of true and fake bird's nest. Fake bird's nests will not have such a fragrant albumin.

Chemically processed bird's nests tend to turn into watery form if they take too long during the stewing process.

1. Comparison by texture.

1. The "dense, fine, and sparse" of bird's nest cups are distinguished, and the denser ones are classified as top-level bird's nests, and the sparse ones are second-class. Generally, the compact fiber of the complete fiber is the first grade, and the fiber of the incomplete shape is not compact as the second grade.

2. According to the division of the bowl shape, it is better to have a complete and uniform bowl shape.

2. Compare according to the color of bird's nest.

Bird's nest can be divided into white bird's nest and blood bird's nest according to its color. In fact, there is a lot of controversy about comparing the quality of bird's nest with **. A lot of data shows that the bird's nest unique ingredient content of white bird's nest in the first stage is the highest, and the difference between the two is not very large.

However, due to the fact that the production of blood bird's nest is very scarce and has a special texture and taste, sometimes the market ** is slightly higher than that of white bird's nest.

3. Comparison according to the type of bird's nest.

According to the quality of bird's nest, it is divided into official bird's nest, hairy bird's nest, and grass bird's nest.

1. Official bird's nest: The bird's nest in the first stage with a complete shape and few impurities is usually called "official bird's nest" and "tribute bird's nest". This bird's nest is the most nutritious, with few impurities and a good taste. Tradition also has a way of calling the first high-quality white bird's nest as the official bird's nest.

2. Bird's nest: a bird's nest containing more bird's nest, or second and third bird's nests. The nutritional content is not as good as that of the official swallow, and there are many impurities, which is not easy to handle.

3. Grass swiftlet: a kind of bird's nest built in the grass, mixed with a large number of grass clippings, the worst quality.

What are the different types of bird's nest?

According to the "dense, fine and sparse" division of bird's nest, the denser bird's nest is the top bird's nest, and the sparse is the second-class bird's nest, according to the type of bird's nest, it can be divided into official bird's nest, hairy bird's nest, grass bird's nest, and according to the color of bird's nest, it can be divided into white bird's nest and blood bird's nest.

According to the classification of bird's nest types, the shape of the official bird's nest is the most complete, the impurities are the least, and the taste is relatively good, and the grass bird's nest is mixed with a large number of grass clippings, and the quality is the worst.

The yield of blood bird's nest is very rare, and the texture and taste are relatively special, so sometimes it may be slightly higher than that of white bird's nest.