Store stir-fry, kabob, or stew meat in its original packaging in the coldest part of the refrigerator, where it will keep for two to three days. It may be frozen in this packaging for up to two weeks. For longer storage, wrap the meat in heavy-duty aluminum foil, freezer paper, or freezer bags. This beef will keep three to four months in the freezer. Defrost meat in the refrigerator, allowing 12 to 24 hours, depending on the amount. Cook as soon as possible after defrosting.