Quick Answers
Can a pressure canner be used on a smooth top range?
For a pressure canner to work successfully on a smooth
top range, the canner bottom must be flat and in contact
with the cooktop. Most heavy cast aluminum canners meet
these specifications. Lighter weight stamped aluminum
canners have a concave bottom. If the concavity is
greater than one-eighth inch, the canner will not
perform effectively. To measure the concavity, place a
straight edge across the bottom and measure the distance
to the canner bottom with a ruler. Because the heat
beneath the canner is not uniform, smooth top ranges are
not the best choice for home canning.
Barbara Willenberg, Nutritional Sciences, University of Missouri-Columbia
Last update: Saturday, June 07, 2008
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