First of all, put the loach into the sieve, slightly drain the water on the loach, and then grab it by the head, with the thumb and forefinger hard to buckle, and then use the scissors to break open the loach from top to bottom of the stomach, will be taken out of the inside of the viscera, and then rinsed with clean water 1-2 times can be. Eat loach generally do not cut open the loach to kill, but the loach in the water to raise about 3 days, to the loach stomach after the dirty things are spit out, you can directly use it to do the dishes.

First, how to kill the loach

1, kill the loach, because the loach will have mucus on the body, resulting in slippery and not good to deal with, you can put the live loach in the bag, sprinkle a spoonful of salt, tied up after a few minutes of the loach will not be able to move, the loach will be inactive to come out and cut open the abdomen with scissors to take out the guts, rinse off with water. Rinse off the mucus on the outside with water. If you are killing fresh loach, grab its head with your hand, use your thumb and forefinger to buckle hard, and then use scissors to break open the loach belly from top to bottom, and then take out the internal organs inside, and then rinse it with water for 1-2 times.

2, the loach generally do not need to cut open, put in the water for a few days, keep the water clean, do not need to feed food, after a few days the loach will be in the stomach of the dirty things are spit out, can be used directly to cook.

3, the famous loach arch tofu, practice is to put a block of tofu and loach in a pot, to use cool water, into the loach is fresh, and then heat with a small fire, because the water is slowly hot, when the loach can not stand the heat will drill to the tofu, in the last cooked, loach are drilled into the tofu, this time to put the seasoning out of the pot can be.

Second, the loach's morphological characteristics

1, the loach is cylindrical, elongated body, the caudal peduncle side flat and thin, the kiss pointed, the head is small, horseshoe-shaped, the mouth is inferior, the whiskers 5 pairs (2 pairs of maxillary whiskers, kissing whiskers, mandibular whiskers, 2 pairs), the side of the upper position, the eye is small, no subocular spines, covered with dermatophyte, gill slits stop at the base of the pectoral fins, gill holes are small, scales very small, y sunk in skin, swim bladder very small, enclosed in hard bony sac, dorsal fin short, starting point opposite to the start of the ventral fin, with seven branched fins and two unbranched fins.

2. The pectoral fins of the loach are farther away from the ventral fins, with 10 branched fins and 1 unbranched fin, the ventral fins do not reach the anal fins, with 5-6 branched fins and 1 unbranched fin, the anal fins have 5 branched fins and 2 branching fins, and the caudal fin is rounded. The lower part of the body is white, the upper part is gray-brown, with irregular black spots on the side of the body, a large prominent black spot above the base of the caudal fin, and spots on the dorsal and caudal fins, and the other fins are gray-white.