Many cooks have a bit of trepidation about canning. And with good cause — canned low-acid foods such as vegetables, meats and some tomatoes can harbor harmful organisms if not processed properly. But ...

However, low-sugar and freezer (uncooked) jams, do require the addition of pectin. Commercial pectins are not interchangeable, but the fruit used in most recipes is. Be sure to use the specific kind ...