1, put the lamb belly in a cold water basin. If the water does not reach the surface of the lamb belly, add 1/2 teaspoons of salt and two teaspoons of white vinegar.
2. Soak for about 10 minute, and remove the surface mucus by hand rubbing.
3. Pour off the water, add appropriate amount of corn flour and rub it back and forth by hand.
4. Then wash off the corn flour with water.
5. Finally, dry the water and you can cook.