1, first of all, find the belly of Duobao fish. In fact, the belly of Duobao fish is very small. We can find the softer part from the lower left of the head, then cut it open with scissors or a relatively small sharp knife, and just take out the internal organs in the belly and wash it. Thirdly, we can directly remove the gills by hand or scissors. After removing the gills, we should thoroughly wash the Duobao fish, and then clean the top. Duobao fish has no scales.

2. Duobao fish is the English translation and trade name of turbot, also known as European flounder. Turbot belongs to the genus Scophthalmos, Scophthalmus, and its main producing area is located on the east coast of the Atlantic Ocean, and it is one of the rare low-temperature economic fish species in the northeast Atlantic Ocean. 1992 was first introduced to China by Huanghai Fisheries Research Institute of Chinese Academy of Fishery Sciences, and now it has become the main aquaculture species in China, especially in northern China.

3. Scophthalmus maximus is a cold-temperate, benthic omnivorous fish, which can withstand the water temperature of 1℃~28℃. The male fish generally matures 1 year, while the female fish matures in 2 years. It has the characteristics of fast growth, high meat yield, strong disease resistance and high nutritional value.