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Mason's innovation was a square-shouldered jar with threaded screw-top, matching lid, and rubber ring for an airtight seal. Mason's easy-to-use, re-usable jars made home canning popular among American settlers, homesteaders, and even in urban homes. Most Mason jars were manufactured by competitors after his patent expired in 1879.
After Mason's patent expired, many other manufacturers produced glass jars for home canning using the Mason-style jar. [9] Early closure style, zinc lid over glass liner. The initial form of closure for the glass canning jar was a zinc screw-on cap, the precursor to today's screw-on lids.
Around 1884, when the brothers discovered that the Mason Improved fruit jar patent was due to expire, their company began manufacturing canning jars in their glassworks. [9] The Ball Brothers' jars, which were produced in half-gallon, pint, and midget sizes, were manufactured during 1884, 1885, and 1886.
Canning was a vital part of home life in rural areas or when trips to a grocery store were few and far between. ... he forgot to patent that part of his invention until Mason jars had already ...
Keeran's 2-piece vacuum seal for Mason jars, which became the standard for home-canning, was immediately popular. However, he sold off his company, White Crown Fruit Jar, in order to finance his favorite invention: the Eversharp mechanical pencil.
Mason jars were manufactured in many different colors, including clear, pale blue, yellow, amber, olive and various other greens. (In the early 1900s, people thought darker glass helped prevent ...
"Patent Nov 30th 1858", signifying the date of Mason's patent, was embossed on thousands of jars, which were made in many shapes, sizes, and colors well into the 1900s. Since they were made in such quantity and used for such long periods, many of them have survived to the present day. [citation needed]
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.
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