What are the grades of bird s nest? How to classify bird s nests

Classification criteria for bird's nests.

Bird's nests are generally divided according to the "dense, fine, sparse" and shape of the bird's nest, the denser and the more symmetrical are classified as the top bird's nest, and the sparse ones are inferior. Bird's nest products can be divided into the following types according to their shape and processing methods:

1. Bird's nest: Workers select nest-shaped or boat-shaped bird's nests from the harvested bird's nests, and then sell them after small plucking. Bird's nests are taken out naturally, so they vary in shape and size. Its nutrition, fragrance, and hair are all the best. The cleanest of all products with the best hair head.

If the swallow builds a nest on the beams of the swiftlet house, the bird's nest will take on the shape of a boat; If the swallow builds a nest in the corner of the wall, the bird's nest will form a triangle.

2. Bird's nest: The strip bird's nest that is broken during the bird's nest harvest or cut out from the bird's nest is basically the same as the bird's nest.

3. Bird's nest cake: The bird's nest that is broken by the workers during harvesting, and the bird's nest is pressed into different shapes (such as diamond, spherical, half-moon, rectangle, etc.). It is usually taken from grass bird's nest and hairy bird's nest, and the quality is poor, so it is not recommended to buy it.

4. Swallow horn: Swallow horn does not refer to large pieces of swallow pieces. This is a serious mistake!

Bird's horn refers to the harder part of the two ends of the bird's nest, and it is also the place where the swallow's saliva is the thickest. If a longer soaking time (8 to 12 hours) is required, the horns are usually cut out and soaked in water separately from the bird's nest, and the horns are torn into pieces before soaking to make it easier to soak in water. The hair head is larger and more refreshing than bird's nest.

5. Bird's nest: refers to the very fine silk in the bird's nest. Depends on the breed**.

6. Broken swallows: seriously broken during transportation or harvesting. Many times it contains impurities, or it is a mixture of several qualities. The hair is small.

Bird's nests are divided into three grades, ranked from good to poor.

Guanyan, Maoyan, Grass Swallow.

Grades of bird's nest: bird's nest, bird's nest, bird's nest, bird's nest cake, bird's nest crush.

1. Bird's nest. Removing the stray hairs and retaining the shape of the bird's nest 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 and taste.

2. Swallow strips. Many of the bird's nests that are unfinished are crushed during the process of picking, packing, or transporting them, and become bird's nest sticks. 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 lamp, ** is still lower than Yanyou's cup.

3. Swallow horn. 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, the saliva concentration is high, 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. Swallow cake. The raw material is a hairy bird's 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. Swallow crushed. Bird's nest 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.

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.

According to the texture, cleanliness and appearance of bird's nest, it can generally be divided into three levels: official bird's nest, hairy bird's nest, and grass bird's nest.

The official swallow belongs to the top grade, because it only paid tribute to the official government in the past, it is called the official swallow, the impurities are less, the color is slightly yellow and bright, it is like a loofah, it becomes soft after adding water, and it absorbs about 7 8 times of water and expands, it is called "hair".

Mao Yan is the second, with more impurities than Guan Yan, darker color and brightness, worse "hair", and slightly lower value and **.

Grass swiftlets are the lowest in the three categories, and most of them are the second nesting nesters after the bird's nest is harvested, which contains more impurities, and needs to be rinsed and sorted to remove impurities, and the price is also the cheapest.