There is no harm in the cow louver itself. Before use, the foreign matter inside must be carefully cleaned. If used for cleaning, it has caused diarrhea.
Tripe is tripe. Alias: louver, belly tip, tripe and hairy belly. It is one of the internal organs of cattle, that is, the third diaphragm stomach in the stomach of cattle. The valve stomach is leaflike, and its function is to absorb water and acid produced by fermentation. Niubaiye can be used as food, generally used for hot pot, fried food and other purposes. Cantonese people also steam tea as a snack when they drink it. Fresh tripe must be crispy and delicious. Tripe contains protein, fat, calcium, phosphorus, iron, thiamine, riboflavin, nicotinic acid and so on. It has the effects of invigorating spleen and stomach, invigorating qi and nourishing blood, tonifying deficiency and replenishing essence, and quenching thirst and dizziness, and is suitable for people with deficiency of qi and blood, malnutrition and weakness of spleen and stomach after illness.