1, look at the appearance:

Usually, the color of sea cucumber is mainly bluish brown, but if sea cucumber grows in sediment or rocks, the surface color of sea cucumber will turn dark brown. Choose a good ready-to-eat sea cucumber, the first choice is the short and thick sea cucumber, which is slender and looks attractive, not necessarily a good sea cucumber. You can also choose the ready-to-eat sea cucumber by watching the sea cucumber thorns. Usually, the high-quality ready-to-eat sea cucumber has a tall and straight thorn and a complete skin. And inferior, such as the instant sea cucumber foamed with sodium hydroxide, will have "skin explosion" on the surface and the thorn will also break.

2. Smell:

High-quality sea cucumbers live in a clean sea, so the sea cucumbers themselves will have a fresh taste, which can be smelled when picking ready-to-eat sea cucumbers. However, if you smell a little fishy or strong liquid medicine when picking ready-to-eat sea cucumber, it means that formaldehyde, preservatives and other pharmaceutical ingredients are added in the foaming process of sea cucumber, which belongs to inferior sea cucumber.

3. Feel the elasticity:

Feel the elasticity of sea cucumber with your hands. High-quality sea cucumbers have solid meat walls, good meat quality and high elasticity to the touch. However, the inferior sea cucumber, because chemical components may be added in the process of foaming, has fragile meat wall and damaged meat quality, so its elasticity is poor.