How to choose bird's nest practical tips
4hw.com.cn: Bird's nest is a precious food material with rich nutritional value and high price. Now there are artificial bird's nest and wild natural bird's nest. Do you know how to choose bird's nest? Let's have a look.
Look at the color
First of all, it must depend on the color of the bird's nest. If the color of the bird's nest is uniform and beautiful, and the surface is neat and smooth. Then you should pay attention. It is mostly bleached manually. The pure bird's nest has different colors even if it is the same lamp. There are different depths. Whether it is dry or soaked, the bird's nest presents natural ivory white and light beige, with uneven color distribution and rough surface.
Look at the shape
Good bird's nest. The swallow silk is thick and dense, and the calyx is large and thick. The structure of the bird's nest should be a filamentous structure, with scattered lines, which is naturally irregular, while the neat and beautiful Yan lanterns are manually combined and pasted (for example, egg white, gelatin, starch and other materials are used as adhesives). The artificially processed bird's Nest lines are arranged in a fine and orderly manner.
Smell
Real bird's nest dry goods don't have a strong smell, but have the smell of 'ammonia'. Only when fully soaked, the stewed bird's nest will have the smell of protein. Therefore, a simple and effective way to identify bird's nest is to smell whether there is ammonia smell.
Look at the thickness
The bird's nest is normally thin and natural, with uneven cracks. The swallow's calyx coated with glue is often thick and free of cracks, and the corners on both sides are flat and smooth. The fake bird's nest processed with Indonesian cassava powder is heavier and white, with dense swallow silk and neat and unnatural shape.
Look at the fine hair
As long as it is a natural bird's nest, most of it will have impurities and fine hair. No matter how good the picking skill is, it is difficult to be 100% clean as long as it is hand picked. If the bird's nest looks very clean and there are no impurities and fine hairs after hair soaking, it may be a bird's nest after bleaching or chemical depilation.