Operation method
First chop off the fish head.
Hold the fish in your left hand and divide it in two.
Press the fishbone with the left hand, and slice the fishbone along the inner side of the fishbone with the oblique knife in a push pull manner.
Put the half of the cut fish meat and scale face down, the fish tail to the left, from left to right, and start from the fish tail to produce the fillet with an oblique blade.
Follow the method in the previous step to prepare the fish fillet, and the remaining fish bones can be chopped into about 3cm pieces.
When the fish fillets are ready, they can be cooked.