In general, the size of the sea cucumber determines its nutritional value, the same species of sea cucumber, the head of the larger more abundant, but generally people buy dry sea cucumbers, and the kind of dry sea cucumbers with a large head may be the result of poor drying treatment.

The different varieties of sea cucumbers are not good to compare together, and there are also farmed sea cucumbers that will go through a quick ripening process, so the year-old sea cucumbers are almost as good as the ones that have been grown for 3-5 years. A good sea cucumber depends on its place of origin, just like any other ingredient, the place of birth determines its quality.