Yanzhiwu chain organization is a well-known enterprise specializing in making bird's nest in China, which started from 1997. 202 1 became the designated bird's nest product of China national fencing team and 202 1 became the designated bird's nest product of China national fencing team. More than 600 physical stores have been opened in the national 155 cities, and many online sales channels have been opened. The brand spokesperson is Zhao.
By September 20, 2022, Yanzhiwu had held 84 patents, including invention patent 13, utility model patent 40 and design patent 3 1.
The bird's nest in Yanzhiwu is mainly produced in Indonesia and Malaysia, and the swallows are Jin Siyan in kalimantan island, both of which are selected light-haired swallows. At present, the company's processing plant is in Xiamen, with its own 20,000-square-meter bird's nest factory.
Method of selecting bird's nest
1, look
Mainly depends on whether the bird's nest is clean, with less impurities and dense fibers. The bird's nest should be a filiform structure, not a real bird's nest made of fragments.
Step 2 touch
Mainly to measure the dry humidity of bird's nest. The drier the bird's nest, the easier it is to break, while the higher the humidity, the less likely it is to break. Therefore, in order to facilitate the preservation, merchants will keep the bird's nest at a moderate humidity, but if the humidity increases excessively, it will be suspected of irrigation.
soak
After the bird's nest is soaked, if it is completely inelastic when pressed or there is oil on the water surface after soaking, it is a fake bird's nest.
Step 4 smell
Anything with a special smell, fishy smell or greasy smell is fake.
Step 5 pull
Take a small piece of bird's nest and soak it in water. When it is soft, pull it with silk strips, which has poor elasticity. If it is pulled, it is a fake. Rubbing with your fingers is also a fake that can be rubbed into a paste without elasticity; It's a fake that changes color after soaking.
The above contents refer to Baidu Encyclopedia-Yanzhai.