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John Landis Mason (c. 1832 in Vineland, New Jersey – February 26, 1902) was an American tinsmith and the patentee of the metal screw-on lid for antique fruit jars commonly known as Mason jars. Many such jars were printed with the line "Mason's Patent Nov 30th 1858". [1] He also invented the first screw top salt shaker in 1858.
John Landis Mason, inventor of the Mason jar. In 1858, a Vineland, New Jersey, tinsmith named John Landis Mason (1832–1902) invented and patented a screw threaded glass jar or bottle that became known as the Mason jar (U.S. Patent No. 22,186.) [1] [2] From 1857, when it was first patented, to the present, Mason jars have had hundreds of variations in shape and cap design. [8]
The glass jars come in a variety of shapes and sizes, have rubber seals, glass lids, and stainless steel clips. Food is processed in Weck jars using the water bath canning technique, not a pressure canner. During the canning process the lids are secured by the clips which must be removed once the processing is complete and the jars have cooled.
Preserved food in Mason jars. Home canning or bottling, also known colloquially as putting up or processing, is the process of preserving foods, in particular, fruits, vegetables, and meats, by packing them into glass jars and then heating the jars to create a vacuum seal and kill the organisms that would create spoilage.
Home canning often uses glass mason jars which are often reused several times. Many non-food types of containers, including reusable shopping bags, and luggage, are designed to be reused by consumers. With any food packaging, proper cleaning and disinfecting between each use is critical to health.
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