The cow shit bag refers to the cow sand bag, which is the part of the cow where the intestines and the tripe are connected. This part is very special, is the cow's wrinkled stomach. The wrinkled stomach contains parasites and is not edible, but it can be used as a very special ingredient. In Qiandongnan region, the cow sandbag is a very valuable ingredient, only meet the extremely important guests, will use this ingredient hospitality.