1. Clean water should be added to stainless steel pot, then it should be continuously scrubbed with cucumber, and then it should be drained with paper in the kitchen.

2. Put stainless steel pot on the fire and turn it down. Cut off the pig fat attached to the pig skin and put it in the pot. Turn the fat with a shovel until all the pig fat melts.

3. Add a little baking soda, then scrub with loofah for many times, rinse with clear water and dry with oil-absorbing paper.