Crayfish grow in freshwater lakes, ponds, rivers and other natural waters. The water quality and environmental sanitation of these waters are uneven, and some even are the outlets of smelly rivers and sewage treatment plants. Crayfish feed on rotten plants, plankton and sediments, and absorb the surrounding odor and impurities, which also causes the living environment of crayfish to be dirty and messy.
Crayfish farming methods are also unsanitary. Due to the huge market demand of crayfish, there are many crayfish breeding bases in China at present. In the process of culture, in order to increase the yield, farmers store crayfish in closed ponds, and intensive culture is not hygienic enough.
Cleaning skills of crayfish
1. Put carefully selected crayfish directly into clear water mixed with vinegar and salt, and soak for 15 minutes, forcing crayfish to spit out dirt on their cheeks. Basically, the soaked crayfish are very clean, and then washed with clear water for 3 times. This method can be recommended to housewives. Vinegar and salt are common condiments. Cooking crayfish at home is simple and labor-saving.
2. When cooking crayfish at home, hand washing is the most common cleaning method. Scrub the surface of crayfish, remove the belly of the shrimp head, hold the middle of the tail by hand and twist it left and right until it breaks, and slowly pull out the shrimp intestines, so that it is clean.