I canned my tomatoes in a pressure canner. Is it necessary to boil them before serving?
You don't need to boil tomatoes before eating if you are sure the foods were canned according to current (1989 or later) University Extension publications and that your equipment was in good working order. If you have any doubts about the canning methods used, boil the tomatoes 10 minutes below 1,000 feet and 11 minutes if you live above 1,000 feet.
Note: Tomatoes canned using current University Extension publications need not be boiled before using.
Barbara Willenberg, Nutritional
Sciences, University of Missouri-Columbia
Last update: Tuesday, May 05, 2009