Slice the fish twice, slice the ginger and cut the onion into sections. Put the fish in a pot and fry it with lard. Add the ginger, pepper and onion and blanch them with boiling water until they turn white. Add the yam and cook it first, then add the tofu. When it is almost cooked, add a little Mao Mao salt. The baby is too young to be too salty, just add chopped green onion, and fish can also be given to the baby. No fishbone.

The frozen fish with good quality has full and protruding eyes, bright eyes, sunken eye sockets and poor dullness.

The appearance is bright, the scales are intact, and the body is complete; If the skin color is dull, dull, the body surface is untidy and the scales are incomplete, it is a defective product.

The anus is intact without cracks, with dense appearance and no turbid color. If the anus is loose and prominent, the anus is large or cracked, it is a defective product.

After the frozen fish is thawed, the muscle elasticity is poor and the muscle fibers are not clear. The bad smell is spoiled frozen fish. Frozen fish stored for a long time, if the head has brown spots and the abdomen turns yellow, it means that the fat has gone bad and this kind of fish is inedible.

Once frozen fish is thawed, it is easy to deteriorate, so even if you buy good quality, you should eat it in time. Don't put it in the refrigerator for the second time.