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Sunday, July 19, 2015

Vintage Pyrex and Anchor Hocking

Borosilicate glass was first made by German chemist and glass technologist Otto Schott, founder of Schott AG in 1893. Schott AG sold the product under the name "Duran". In 1908, Eugene Sullivan, director of research at Corning Glass Works, developed Nonex, a borosilicate low-expansion glass, to reduce breakage. Borosilicate glass is “hard” glass manufactured at a higher temperature and thus able to withstand oven and freezer temperature changes. Jesse Littleton of Corning discovered the cooking potential of borosilicate glass by giving his wife a casserole dish. The added boron allows Pyrex to handle heat much better than typical glass. Pyrex made its public debut in 1915 during World War I as an American-produced alternative to Duran. Introduced by Corning Incorporated in 1915 for a line of clear, low-thermal-expansion borosillicate glass. Corning Incorporated is an American manufacturer of glass, ceramics, and related materials, primarily for industrial and scientific applications. The company was known as Corning Glassworks until 1989, when it changed its name to Corning Incorporated. Corning Glass Works was founded in 1851 by Amory Houghton, in Somerville, Massachusetts, originally as the Bay State Glass Co. It later moved to Williamsburg, Brooklyn, New York, and operated as the Brooklyn Flint Glass Works. The company moved again to its ultimate home and namesake, the city of Corning, New York, in 1868 under leadership of the founder's son, Amory Houghton, Jr. In 1998, Corning divested itself of its consumer lines of CorningWare and Corelle tableware and Pyrex cookware selling them to World Kitchen, but still holds an interest of about 8%. Pyrex sold in the United States is now made of tempered glass; outside of North America the costlier borosilicate is still used. Pyrex sold in the United States is made of tempered soda-lime glass, which does not handle heat as well as borosilicate glass does. There have been complaints about the new glass exploding especially if you shock the glass with drastic temperature changes. For instance removing a glass casserole dish from the oven and setting it on a cold, wet granite countertop. When it explodes, shards of glass projectiles can cut you and the hot glass and food can burn you. You can decide if it's better to avoid the modern Pyrex ovenware.

For best results, when you use a glass dish don't go any higher than 350 degrees. And be very careful that you don't put place a hot glass dish on cold water, cold granite, cold metal, etc. Which is where collecting vintage Pyrex oven and tableware comes in! Keep in mind that it's better to hand wash the vintage glass ovenware, tableware and serving pieces as the dishwasher can damage the finish, especially the colors. It can make it look chalky. Also be careful stacking because you can scratch your pieces. If you stack, use something like a coffee filter, clean cloth (you can choose a pretty pattern and cut with pinking shears), or even cheap plastic food storage containers to keep your glassware from getting scratched.

Were there other glass makers? Yes, some of the common glass marks and companies you’ll come across in your search for Pyrex might be: “Fire King”, “Anchor Hocking” and “Glasbake”. Anchor Hocking Company is a manufacturer of glassware that is part of EveryWare Global Inc.. The Hocking Glass Company was founded in 1905 by Isaac Jacob "Ike" Collins in Lancaster, Ohio and named for the Hocking River. The company was a major producer of Depression glass. The first glassware produced as Anchor Hocking Glass Company was Royal Ruby in 1939. In addition, Anchor Hocking produced Forest Green Glass, Fire-King and Anchor Ovenware. Anchor Hocking has also made the switch from borosillicate glass.

Why would you collect vintage Pyrex and Anchor Hocking (and other glass oven and tableware)? There are many reasons:

It's practical. Yes, it looks good, but it's also very useful! You can use it for baking, serving, storing food. You can also use them for organizing.

And it looks great! There are so many colors and patterns to choose from. You can collect a certain pattern. Or collect certain colors. Or collect them based on their usage (glasses, ovenware, serving pieces, holiday pieces, etc). Many come with accessories such as holders. The glassware comes in pastels, primary colors, black and white, and those old 1970's colors like avocado green, gold, orange, burnt orange. You can get holiday patterns too.

I do NOT sell anything and do NOT have any pieces for sale. I only wanted to show you what I found on the Internet to give you ideas on what is out there. Vintage Pyrex or Anchor Hocking is still affordable and easy to find. So let's take a look. I guarantee you have memories that include these vintage pieces!

Here are some examples of accessories that went with the glassware.

You can decorate for holidays with your Pyrex or Anchor Hocking glassware.
Valentine's Day


July 4th



Using vintage glass overnware and tableware in organizing.

Gift ideas using Pyrex and Anchor Hocking vintage glassware, ovenware, tableware, service pieces. You can create a casserole, freeze and gift! Or put the recipe and all the ingredients in a vintage piece of ovenware and gift. Use your vintage Pyrex or Anchor Hocking as a gift basket and fill with kitchen items or packaged foods and candies, teas or specialty coffees.

I love this deep sectioned drawer for storage!

1 comment:

mike said...

Your thoughts are admirable. It seems you have the rich knowledge about this area. Let me tell that you have written an excellent article. Keep up the good writing.

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