The biggest enemy of frozen meet is freezer burn (especially if your freezer is "frost free" which most women insist on), fortunately it is easy to identify and trim off. Trimming freezer burned ground meat might not be so easy, I just toss it, especially sausage. Vacuum packing is a real blessing, both for ease of prep and length of storage. Pressure canning saves freezer space and avoids the greatest cause of freezer burn; the "I didn't have time to thaw it" problem.
Mike