1. Wash the dirt and mucous membrane on the surface of beef omasum with clear water and put it into a basin. Add100g salt,100g corn flour and 30g vinegar. There are a lot of sundries on hairy belly and chiba belly, so be sure to wash them. Before washing, shake all the sundries on the tripe, spread them on the chopping board, unfold the tripe leaves layer by layer, then wash them repeatedly with cold water until there is no smell of grass, cut off the "belly edge" of the tripe ring, tear off the oil skin of the bottom plate, rub one big leaf and one small leaf continuously for 15 minutes, then rinse them twice, boil water in the pot, and put the washed tripe into the oven. After the above treatment, the hairy belly is clean and odorless.

2. Tripe contains protein, fat, calcium, phosphorus, iron, thiamine, riboflavin, nicotinic acid, etc. It has the effects of invigorating spleen and regulating stomach, invigorating qi and nourishing blood, tonifying deficiency and replenishing essence, and quenching thirst and dizziness, and is suitable for people with physical weakness, qi and blood deficiency, malnutrition and spleen and stomach weakness after illness.