1. Slaughter of bullfrogs: The bullfrogs are inserted into the large holes of the occipital bone with electricity or with a sewing needle, which damages the brain and causes death. Ether can also be used to anesthetize bullfrogs. Do not slam on the back of the head to cause death. 2. Peeling: Place the dead bullfrog on the workbench, cut it from the eye, and cut it from the front of the head to the abdomen to the anus. It should not be cut too deep. Just cut it, and peel it from the abdomen along the ridge. The parts are peeled off and then the wrists and feet are peeled off. Do not use excessive force to avoid damaging the skin. 3. Trimming: Place the peeled frog skin upside down on a work bench, fix it with a thumbtack, and then use a knife to gently scrape the grease and frog meat off the skin and wash it off with clean water. 4. Impregnating solution: The washed frog skin is soaked in 3 to 4% sodium chloride solution for 1 hour, then soaked in the antiseptic solution for 6 to 12 hours, once every 3 hours, and the antiseptic solution is It is prepared by dissolving 0.25-0.5% of dihydroxy hydroxytetrabenzene and 0.3% of thiabendazole in water. The room temperature is generally kept at 25°C when soaked. 5. Drying: Wash the frog skin immediately after removing from the antiseptic solution, and then trim it again. After finishing, dry it. The drying method is to straighten the frog skin with a push pin, then use the bamboo to expand slowly and dry it, not in the sun. Direct irradiation. Rapid drying can cause skin bursts. 6. Packaging: The dried frog skins are packaged in kraft paper, 24 or 48 per pack. Store it in a cool, dry place after being fastened. This is the crude frog skin.
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