Corning Ware, also written CorningWare, was originally a brand name
for a unique glass-ceramic (Pyroceram) cookware resistant to thermal
shock. It was first introduced in 1958 by Corning
Glass Works in the
United States. The brand was later spun off with the sale of the
Corning Consumer Products Company subsidiary (now known as Corelle
brands of Rosemont, Illinois).
Glass-ceramic based Corning Ware can be
taken from the refrigerator or freezer and used directly on the
stovetop, in an oven or microwave, under a broiler, for table /
serving use, and when ready for cleaning put directly into a
CorningWare is sold worldwide, and it is popular in North
America, Asia, and Australia.
2 Patterns and products
3 Related products
5 External links
Original Corning Ware logotype. The stylized burner icon indicates
pieces that are range-top safe.
S. Donald Stookey
S. Donald Stookey of the Corning Research and Development
Division discovered Pyroceram, a white glass-ceramic material capable
of withstanding a thermal shock (sudden temperature change) of up to
450 °C (840 °F), by accident.
He was working with photosensitive glass and placed a piece into a
furnace planning on heating it to 600 degrees Fahrenheit. When he
checked on his sample the furnace was at 900 degrees and the glass had
turned milky white. He reached into the furnace with tongs to discard
the sample and it slipped and hit the floor without shattering.
The material was used in the ballistic missile program as a
heat-resistant material for nose cones.
Production of the original
Pyroceram based version of Corning Ware
ceased in 2000 and the brand was relaunched as a line
of stoneware based bakeware in 2001.
Corelle Brand's (then known as "World Kitchen") 2001 annual report
indicated that the stove top and dinnerware product lines were halted
at the end of the century "as part of a program designed to reduce
costs through the elimination of under-utilized capacity, unprofitable
product lines, and increased utilization of the remaining
facilities." Facilities in
Charleroi, Pennsylvania and Clinton,
Illinois were closed.
In December 2008, the stovetop line of
CorningWare was reintroduced by
Corelle Brands. The cookware is manufactured by Keraglass/Eurokera (a
subsidiary of Corning also specialised in vitroceramics for cooktop
panels and equipment for laboratories) in Bagneaux-sur-Loing, France.
This is one of the only factories in the world still manufacturing
Pyroceram-based cookware. At the time it restarted the production of
CorningWare, Keraglass/Eurokera was able to abandon the use of arsenic
in the manufacture of their products, thanks to the modern technology
of their newly built oven.
Patterns and products
Corning Ware's range/oven-to-table service first featured the blue
'Cornflower' pattern decoration, designed by Joseph Baum, an artist at
the Charles Brunelle Advertising Agency in Hartford, Connecticut. It
became the trademark of Corning consumer products for three decades.
Following the 'Cornflower' pattern, many additional patterns were
offered by Corning over the years.
Pyroceram based Corning Ware is popular in the
Asia–Pacific region. Additional patterns have been created
specifically for this market, including Bliss, Blue Elegance, Cool
Pansies, Country Rose, Dainty Flora, Dandy Blossoms, Elegant City,
European Herbs, Herb Country, Lilyville, Lush, Petite Trio, Plum,
Salad Seasons and Warm Pansies among others.
The lids of
CorningWare and Pyroflam (Europe) are typically made of
Pyrex. Though some early lids were made of Pyroceram, most subsequent
lids have been made of tempered borosilicate or soda-lime glass.
Unlike the cookware, these lids have a lower tolerance for thermal
shock and cannot be used over or under direct heat.
More than 750 million pieces of Corning Ware's range/oven-to-table
service have been manufactured since its inception. A partial product
list includes: browning skillets, cake pans, casserole dishes, coffee
pots (drip), dinner service (Centura by Corning), Dutch ovens, frying
pans, grab-it bowls, loaf pans, percolators, pie plates, ramekins,
restaurant ware (Pyroceram), roasters, sauce pans, skillets, souffle
dishes, and teapots.
Corelle Brands sells similar looking products under the CorningWare
brand name (including a copy of "French White") that are made of
glazed stoneware, rather than Pyroceram. The packaging for these newer
CorningWare branded cookware products say specifically that they are
not for stovetop use.
Visions, a brand of transparent stove top cookware originally created
by Corning France and still being produced today, is made of a
transparent version of Pyroceram, called Calexium in some regions of
the world. It features thermal traits similar to Corning Ware plus
improved resistance to staining and the detrimental effects of acids
Corelle, a brand name for break-resistant glass dishware also
originally created by Corning
Glass Works, has offered matching
designs to many Corning Ware patterns. Care must be made to
distinguish between Corning Ware cookware and tableware marketed under
Pyrex brand names, as the thermal properties of each
product are quite different.
Arc International, Europe, sells equivalent cookware to Corning Ware
under the name Arcoflam and, in the United States, through Princess
House as Nouveau cookware with a slightly different design. Since
2009, Arcoflam and Nouveau have been manufactured in the same French
factory as Corning Ware.
^ William Yardley (November 6, 2014). "S. Donald Stookey, Scientist,
Dies at 99. Among His Inventions Was CorningWare". New York Times.
Retrieved 2014-12-26. When I came back, the temperature gauge was
stuck on 900 degrees, and I thought I had ruined the furnace ... When
I opened the door to the furnace, I saw the glass was intact and had
turned a milky white. I grabbed some tongs to get it out as fast as I
could, but the glass slipped out of the tongs and fell to the floor.
The thing bounced and didn’t break. It sounded like steel hitting
the floor. ...
^ a b WKI Holding Company, Inc. (2001-04-13). "Annual Report: 10-K
(Securities and Exchange Commission Filing)". Archived from the
original on 8 April 2008. Retrieved 2007-03-26.
^ WKI Holding Company, Inc. (2001-04-01). "Quarterly Report: 10-K SEC
Filing". Retrieved 2007-03-26.
^ History Corelle.com Archived December 15, 2010, at the Wayback
Wikimedia Commons has media related to Corningware.
Freepatentsonline.com — possibly the Corning Visions Patent
BlueCornflower.com: Corning Ware showcase
Corning Ware 411: Vintage Corningware Information
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