1, scrape the large intestine from beginning to end, back and forth two or three times with a knife, and generally scrape out a big bowl of greasy and dirty things;

2. The large intestine was turned over when it was bought back, and the oily side was turned inside and scraped into the original large intestine passage.

After scraping several times, blow the large intestine with a tube and tie it at both ends;

3. Apply plant ash to the outside of the large intestine, and plant ash can take away the dirty things hidden in many folds;

4. After being covered with ash, wipe it a little and then rinse it with clear water;

5, pay attention to be careful when washing, do not break the large intestine, so as to avoid ash entering it, it is difficult to wash off;

6. After washing, you can turn on the gas. Wrap the large intestine with wheat flour, not too little wheat flour;

7. Wheat flour has a strong adsorption effect, which can take away fine dirt that has not been washed away;

8. After the wheat flour is wrapped, knead the large intestine repeatedly to make the wheat flour fully contact with the large intestine;

9. Wash the wheat flour with clear water, and the large intestine should be clean at this time;

10, at this time, the inedible and inedible parts of the large intestine can be removed with scissors or a kitchen knife;

1 1. Prepare vinegar and salt. If there is no vinegar, you can use white wine instead. Add a proper amount of salt and evenly spread it on the large intestine.

Then knead for a few minutes, salt can remove some dirty things' and then add vinegar, knead repeatedly, the amount of vinegar can be more, vinegar can remove the odor on the large intestine;

12. Wash with clean water, and you can get a clean and odorless large intestine.