To judge according to the size of the dragon, if it is 500 grams of dragon to be steamed for 10 minutes, every increase in the weight of the dragon 100 grams should be steamed for 2 minutes more. As the dragon lives in the cold sea, the meat is more tender and delicate, so it is characterized by high protein, low fat, and rich in vitamins A, C, D, and calcium, sodium, potassium, magnesium, phosphorus, iron, sulfur, copper and other trace elements.