A number of factors go into the final value of a canning jar.
Thousands of canning jars were embossed with the Mason patent date, November 30, 1858.
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Nicholas Appert was up to Napoleon’s challenge—though his invention was a far cry from the Mason fruit jar that came later.
Appert devised a means to hermetically seal jars, which are just bottles with wider mouths. Interestingly, the heat killed the bacteria in the food product, but at the time people did not know that bacteria was the cause of spoilage.
The evolution of fruit or canning jars parallels the science of food preservation, which itself was an attempt to address a critical need.
The information has been obtained from various sources or based on my collecting experience and is true to the best of my knowledge.If you can your own fruits and vegetables, you might be surprised to find that the value of old canning jars is often significant.If you are using the ones your grandmother left you, that jar of spiced peaches might be worth more than you think.Apparently you can use Mason jars to make centerpieces and glassware at your wedding, layered salads, lighting fixtures, air fresheners, flower vases, soap dispensers…They are even making a new version of vintage blue canning jars…