Sustainable Living > Preserving Food

canning, without a waterbath

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apisbees:
Not quite  there are 2 ways, one is like you do and have the hot processed cooked fruit put into the jars and as they cool they seal. The other way is placing the fruit in the jars and heating and processing the fruit while cooking it, and the jars self seal as they cool.
The way you do it is the way most commercial canning is done. At home due to the lack of specialized equipment and pouring of scalding liquids. the use of higher cost jars and self sealing lids is more popular. In a factory cheaper tin cans are used the cooked fruit is filled and the lid rolled on in one continuous line.

Mikey N.C.:
With jams & jelly with all that sugar an pectin(that stuff is very hot) an using hot water jars &seal lids it works, I did same thing this yr. With some tomato sauce. And I've always used waterbath or pressure cooker. Not using oven for preheating jars but hot water

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