If you deal in antiques and collectibles, then you know that one of the hot items right now is Pyrex. Check out the completed listings on eBay and you’ll find Pyrex casserole dishes and bowls that have sold in excess of $2,000! Somehow, I don’t see those buyers taking those dishes to family gatherings…
So in honor of something that almost all of us have used at some point in our life, here are a few tidbits of information that you may not have known.
- According to The Smithsonian Magazine (www.smithsonianmag.com, 6/5/2015), the story of Pyrex glass began with a problem. In 1914, Bessie Littleton’s earthenware casserole dish had cracked. Her husband, Jesse, was working as a physicist at Corning Glass Works evaluating the company’s formula for temperature-resistant glass for use in railroad lanterns and battery jars. Bessie asked her husband if the glass might work for baking, so he sawed off part of a battery jar and took it home to her. With this makeshift dish, Bessie successfully baked a cake and her experiments, in part, moved Corning to launch Pyrex, the first-ever consumer cooking products made with temperature-resistant glass, in 1915. (Read more: How Pyrex Reinvented Glass).
- By 1919, Corning had sold over 4 million pieces of Pyrex to consumers across America from a line that included 100 dish shapes and sizes. (Corning Museum of Glass, retrieved 7/15/2016)
- Originally, the Pyrex dishes were made by glassblowers blowing bubbles of glass, one at a time, into molds. This slow process was expensive and resulted in high retail prices which caused sales to plumment in the mid-1920s. After consulting with outside professionals, a new manufacturing process was created that used automated machines pressing glass into molds. (Corning Museum of Glass, retrieved 7/15/2016)
- In the 1940s, and after merging with MacBeth Evans Glass Company, Corning produced tempered soda lime opal glass for the military. They then began producing products with the same process for the public with the first being a set of nesting mixing bowls in the exterior colors of either red, green, blue, or yellow. This exterior surface was just right for adding patterned decorations and between 1956 and 1987, they released over 150 different patterns. (Corning Museum of Glass, retrieved 7/15/2016)
- Want to go behind the scenes at the home of Pyrex, check out John Ratzenberger’s Made in America (Season 2, Episode 2) which features a segment on Pyrex.
- Pyrex patterns are classified as either Standard (marketed for two or more years and comprised of a full range of dishes and bowls), Limited (appeared for a year or more, but only on a specific set of bowls or pieces far less than a complete collection), or Promotional (usually only a single piece with an accessory and offered as part of a grouping of several seasonal items within a single year).
Pyrex comes in many colors, sizes, and shapes. In addition to your kitchen, it has been used for laboratory equipment, railroad lanterns, and glass insulators. While it’s not my favorite color by a long shot, I have a three piece brown mixing bowl set in the Old Orchard pattern (Cinderella style) that was given to me by my aunt about 6 months before she passed away. She told me that she had gotten the bowls when she first moved to Phoenix in the 1980s and she didn’t use them or want them. She told me that I could sell them if I wanted, but I instead placed them on the ledge above my kitchen cabinets. After she passed away, I realized that those bowls that I am not attracted to, have a very special place in my home and my heart.
What is your favorite Pyrex pattern or color? What is the most that you ever paid for a piece of Pyrex or would be willing to pay to complete your collection? What tidbits of information do you have that others may not know? I would love to hear from you!