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Once a hard, dry sausage is opened, it can be stored in the refrigerator for three weeks. Semi-dry sausages like summer sausage can be stored in the refrigerator unopened for three weeks. Once opened, they can be stored in the refrigerator for an additional three weeks. All sausages can be stored in the freezer for up to two months.
According to the U.S. Department of Agriculture, fresh uncooked sausage can be kept in the refrigerator only one to two days although it can be kept in the freezer for one to two months. Once cooked, they recommend being able to keep it in the refrigerator for only three to four days (or two to three months in the freezer).