Preparation materials: crude salt, flour, vinegar and water.

Step 1: Wipe the beef venetian again with coarse salt and flour;

Step 2: Knead repeatedly. Flour can take away the stolen goods from the cattle louver, and coarse salt particles can inhibit this effect.

Step 3: Apply the beef louver with vinegar to remove the peculiar smell;

Step 4: Rinse the beef louver with clear water and put it in a plate.

Step 5: Dish the cleaned beef venetian blinds.