Rotten. Goose liver sausage will not cause sour taste in the mouth during normal consumption, and it will only be sour after eating if it is rotten. Goose liver sausage is a kind of meat microorganism that proliferates rapidly and easily leads to corruption. It needs to be put in the refrigerator before use, and it can be stored for 2 to 3 days in cold storage, and it can be stored for 3 months below-10 degree.