1. Sea urchins living in the ocean do not have sea urchin yellow all year round, because sea urchin yellow is an animal, which also blocks gonads, which is called sea urchin eggs. Sea urchin yellow only exists after they enter the breeding season. Children who have been bought or fished away have not yet entered the reproductive period, or have just passed the genitals, so they will not turn yellow when they are opened.

2. After sea urchin goes out to sea, its shelf life is extremely short, and it will rot and deteriorate within two or three days. If the sea urchins bought by people are not fresh and stay away from the sea for more than 24 hours, such sea urchins are easy to appear yellow after opening, and even have a strong odor in severe cases. Such sea urchins can no longer be eaten, which will have many adverse effects on human health.

3. The sea urchin is not yellow after being opened. Another reason is that after buying fake sea urchins and improving people's living standards, the counterfeiting technology has been greatly improved. Sea urchins must be eaten or sold as soon as possible after being caught in the ocean. This particular condition is that the number of sea urchins on the market is relatively small, and some businesses will make fake sea urchins for sale in pursuit of profits. Such sea urchins will not be sold after they are opened.

Can sea urchins be eaten yellow? Sea urchins cannot be eaten without yellow.

Because sea urchin is a kind of marine life, only the yellow sea urchin in the body can be eaten by people, and the other parts are not beneficial to the body after eating. Therefore, sea urchins need to be thrown away directly after they appear yellow, even those normal sea urchins that are not in the breeding season cannot be eaten. They don't have much meat in their bodies, and there are harmful substances in their intestines and stomach, which will directly endanger people's health after eating.

How to clean sea urchins: a sea urchin, a pair of thick gloves, a pair of scissors and a bottle of chilled pure water.

1. First cut a small opening from the top with scissors, and then slowly cut the top around.

2. Carefully dig out the sea urchin meat with a spoon.

3. Wash impurities with pure water.

4. Spread perilla in the sea urchin shell, and then put the sea urchin meat on it.