Preparation: salt (or potassium permanganate) tray (preferably stainless steel to prevent freezing) scissors plastic bag things all the following we start to deal with it Processing: 1. Fresh river shrimp with salt (or potassium permanganate) soaked in water for 20 minutes and then rinsed with water 2 times Fish out into the tray for 2. Tail spines cut off the purpose is to fear that the small Luo eat scraped internal organs and put it on top of the prepared tissue paper can be excess water absorption 3. all the processed river shrimp evenly distributed on the tray to prevent freezing in the freezing of bad access to the tray in the refrigerator for 20-30 minutes 4. take out of the tray will be hardened shrimp into a prepared plastic bag into the refrigerator for freezing