1. Soak:

This is a step that is easily overlooked by everyone, so use the skin as soon as you bring it. Be sure to soak in clear water for two hours, which is conducive to the next oil scraping and skin scraping. The skin is not so stiff and easy to operate.

2. First cleaning:

Scrape pig hair, grease and dirt off the skin with a kitchen knife before the skin is cooked. The cleaner the grease is scraped, the clearer the soup is.

3. First boiling:

Add water to the pot and put the skin into it. After boiling, boil for 1 minutes, and cease fire.

4. Second cleaning:

Take out the boiled skin, wash it in warm water, and then put it on the chopping board to scrape off the oil on the skin.

5. Second boiling:

Add water to the pot again and heat it up. If you want to make colored jelly, you can make colorful jelly by adding colored soup such as soy sauce, spinach juice and carrot juice to the soup.