This usually creates a good seal, however,
while placing your food in the hot jar, the
food is exposed to air and the utensils
used to transfer it into the jar. Even
during this short time, your food may
become contaminated. While you have
food that is sealed, it is not necessarily
sterilized. Spoilers may have entered
I know women who do this with their
jam and jelly. They would probably roll
their eyes at me. They have had no problems … yet. However, it is a lot of work
to make jam or jelly, and sugar used is
expensive! I decided to take the extra
step and process the jars in a water bath
canner. Why take the chance? The added
effort is minimal.
Canning in the Oven
Processing your jars in the oven is
another unsafe method. This involves
processing the filled jars in the oven. The
problem is the heat. Oven temperatures
may vary and may not heat evenly. The
dryer heat produced in ovens does not
penetrate the jars as quickly, and heat
circulation is not the same in an oven
as steam in a pressure canner or boiling
water in a water bath.
There is also a method of preserving dry
goods that is called “oven canning.” This
is not the type of canning that we were
just discussing above, so don’t get them
mixed up. Oven canning dried goods is
not safe either. Heating in the oven, you
will still likely introduce some moisture
into your jar of dried goods. Then the
jar seals that moisture in and spoilage is
How about processing your jars in a
dishwasher? No, not safe at all. You can
certainly use the dishwasher to wash
your jars and keep them warm before
packing. But don’t skip processing your
jars in an actual canner.
Knowledge conquers fear. Home
canning is safe if you just follow simple
(mostly commonsense) directions.
And remember what I said earlier?
Canning safety is important, but important doesn’t mean complicated or hard.
I hope this article has given beginning
canners the confidence to get started. It
really is simple!
Sharon Peterson is an avid
gardener and canner who calls
her garden her “happy place.”
She is the author of Simply
Canning and The Pantry Journal. You
can find her sharing about all things food
preserving at SimplyCanning.com.
Connect with Sharon Online: