Pork(List of the Ceremonial Animal)::Two Ways of Preparing Stomach
Wash the stomach clean and reserve its thickest part.  Discard its tough inner and outer membranes, using only the muscular middle layer.  Dice the stomach, stir-fry it in boiling hot oil, season, and then plate it. For this Northern method of preparation, the crisper the meat’s texture, the better it is. 
The Southern method involves braising the stomach in a mixture of water and wine for a period of two incense sticks until sufficiently soft. It is then eaten dipped in plain salt. The stomach is also delicious braised until soft with the rights seasonings in chicken broth, then smoked and sliced. 
: Pig stomach has a fantastic crispness (脆彈, lit. crisp and bouncy) when cooked a-point and a soft springy texture (“Q”) when braised. The only problem is that it’s an absolute pain to clean. There is a lot of slicing, scrubbing, massaging, scraping, rinsing, and parboiling to rid the stomach of its sliminess and smell. Just Google “洗猪肚” (washing pig stomach) and you’ll see numerous articles devoted to the subject and numerous strategies to speed up the process. My mother cleaned tripe using Coca-Cola, which appears to also work for pig stomachs.
：The inner membrane is the mucosa and the outer membrane is the serosa, both of which need to be removed before stir-frying due o their tough and unpleasant textures. Only the orthogonal layers of smooth muscle tissues and connective tissue are used in the dish, providing the a nice “crisp” bite.
: An example of stomach cook in this fashion is the famous Shandong dish: Youbao shuangcui (油爆雙脆, lit. two crisp items stir-fried in boling oil), which consists of rapidly stir-fried “chrysanthemum” cut chicken gizzards and pig stomach.
: Correct me if I’m wrong, but doesn’t this together make three methods and not two?