The only edible part of sea urchin is sea urchin yellow, which is the gonad of sea urchin. To put it bluntly, it is the testis or ovary of a sea urchin. Generally, sea urchins only have five leaves of sea urchin yellow, which is similar to crab yellow and has high nutritional value.

Sea cucumber skin is the focus of eating sea cucumber and the heaviest part of sea cucumber.

Sea urchin yellow is easily decomposed by its own biological enzyme, and will dissolve itself after a long time. So the most important thing to eat sea urchins is freshness. Fresh sea urchin tastes fresh and sweet, which makes people want to stop.

In addition to fresh-shelled sea urchins, there are also sea urchins soaked in salt water and boxed in wood.

Sea urchins soaked in salt water are usually packed in plastic boxes. This preservation method is to put the sea urchin into a plastic box first, then extract seawater and put it in an environment similar to the growth environment, and finally seal it with plastic wrap or plastic bag. The packaging cost of this kind of packaged sea urchin is relatively low, so the taste of sea urchin will also be affected to some extent.