In ancient times, pigs were eaten in the water. The Qing Dynasty poet, essayist, and gourmet Yuan Mei's "Suiyuan Food List" introduced the practice of pigs in the water (generally referring to pig internal organs, or other pig organs except muscles).

Pig urine mostly refers to pig internal organs, such as pig intestines, pig heart, pig belly, pig liver, etc.

Chinese dishes with pig offal as the main ingredient include fried pork belly with pickles (Guangdong), braised large intestine (Guangdong), braised rice noodles (Guangdong), pork belly soup (Guangdong), fried liver (Beijing), stir-fried kidney (Beijing), etc.

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Pig waste generally refers to pig internal organs, or generally refers to other pig organs except muscles.

Due to different customs and eating habits in different places, the specific scope of entering the water is also very different.

Moreover, the status of offal in different food cultures also varies greatly: in some cultures, all organs except animal meat are among the waste that should be discarded; while in other cultures, offal may be more valuable than meat.

of food.

Sometimes offal is also called offal, but offal can also have different meanings.