First of all, there are differences in size. True sea cucumbers are large in size, have thick flesh, and are of good quality. False sea cucumbers are small in size, have thin flesh, and are of poor quality. The salt taste is different, and the salt taste of real sea cucumber is weak. Fake sea cucumbers have a stronger salty taste. Real sea cucumbers have no peculiar smell, while fake sea cucumbers have a peculiar smell.

Artificial sea cucumbers have no mouth or anus. The sea cucumber spines are uniform in length and shiny in color, which is unnatural. Real sea cucumbers have openings at both ends, and are brown or brown-black in color, with uniform color and sea cucumber spines of different lengths. Artificial sea cucumbers are not very elastic and will lose color especially when soaked in water. This will not happen with natural sea cucumbers.

Open the belly of the sea cucumber and there is nothing in the belly of the artificial sea cucumber. In addition to the internal organs, real natural sea cucumbers also have sea cucumber tendons that connect the whole body.

The dryness is also different. Real sea cucumbers: those with dry texture and moisture content below 15% are of good quality; fake sea cucumbers: those with moist and soft texture are of poor quality.

The spit of real sea cucumbers is relatively large and hard, and the arrangement is relatively complete. As for the spits of wild sea cucumbers and artificially cultured sea cucumbers, there will be certain differences between the spits of these two types of sea cucumbers. That is, the spit of wild sea cucumbers will be larger, harder, and more complete. If processed, the spit of high-quality sea cucumbers will be inverted. And if it is a sea cucumber of poor quality, or a fake sea cucumber, the spit will look incomplete.