1. Sea urchins may have died or shrunk when they were picked, leading to pigment decomposition in the body.

2, sea urchin meat is too tender, without excess fat and nutrients, white meat will be more obvious.

3. Influence of sea urchin growth environment. Sea urchins grow in their habitat. The color of seawater is deep or shallow, the sunshine degree is different, and the food source and other factors will also affect their body color.

It should be noted that the meat of sea urchin is tender and delicious, and color is not the only criterion to judge the quality of meat. It is also necessary to judge the quality of sea urchin meat according to the taste and texture of food.