How can I tell if my Pyrex is vintage?

Use the glass markings, stamps, and logos on the pieces themselves to identify when the glass was produced. The oldest Pyrex markings should be on the bottom of glass pieces and feature Pyrex in all capital letters inside a circle with CG for Corning Glassworks.

Which vintage Pyrex is worth money?

Patterned Pyrex—such as the 1956 Pink Daisy or the 1983 Colonial Mist—also tend to be valuable as a collector's item. Some patterned collections, like the 1959 Lucky in Love heart and four-leaf clover design, have been valued as high as $4,000 for one bowl.

What does the number on the bottom of a Pyrex bowl mean?

In many but not all cases, the trailing digit of the model number corresponds to the capacity in pints of the bowl or dish, e.g. #043 = 1½ quarts = 3 pints. Sets were typically assigned catalog numbers similar to the model number sequence of the pieces they contained, e.g. a #470 set contained 1 each 471, 472, and 473.

What are the vintage Pyrex patterns?

Guide to Vintage Pyrex Patterns
  • Amish or Butterprint.
  • Balloons.
  • Butterfly Gold.
  • Colonial Mist.
  • Crazy Daisy or Spring Blossom Green.
  • Daisy.
  • Dot or "New" Dots.
  • Early American.

Why is vintage Pyrex so valuable?

Prices in the Pyrex market are set by the two factors that guide most markets: demand and rarity. Throughout the decades, Pyrex produced a slew of promotional items and limited-edition patterns in small quantities, and those are seriously coveted by collectors.

Collecting 101: Pyrex! History, Popularity, Patterns and Value! Episode 4

What do the numbers on vintage Pyrex mean?

Pyrex dishes also hide a little secret code: Many contain a three- or four-digit number that corresponds to a specific dish. A series of Mixing Bowls will feature 401 (1.5 pint), 402 (1.5 quart), 403 (2.5 quart), 404 (4 quart). The iconic two-quart green-and-white casserole dish is a 232.

What does JAJ mean in Pyrex?

JAJ (short for James A Jobling) were the producers of PYREX tableware, casserole dishes and other bakeware in the United Kingdom from 1922 until the plant (in Sunderland, England) closed in 2007.

Are all Pyrex lids marked?

All lids have a number imprinted on the handle. The clear glass lids have a number that corresponds to the size that it fits. For example the lid for the 043 Oval Casserole has 943 stamped in it. The lids that fit the 471/472/473 casseroles has 470 stamped on them.

What was the first Pyrex pattern?

Atomic Eyes is the oldest Pyrex pattern known to exist.

Originally released as the “Hot 'N' Cold Chip and Dip Set,” this set was simply a large and small mixing bowl with a metal bracket that allowed the dip to be suspended over the bowl of chips.

Can you bake in vintage Pyrex?

That means that if you have Pyrex glassware made before 1998 (like this gorgeous vintage design), you can safely use it like you always have—making a baked mac n' cheese casserole and leaving the dish on your cold granite countertop or immediately transferring it to the fridge for tomorrow's dinner.

Do vintage Pyrex bowls have lead?

Is there lead in vintage Pyrex bowls and baking dishes? Yes. Almost all vintage Pyrex bowls and baking dishes test positive for lead when using an XRF (a precision scientific instrument that will report the exact quantity of lead, cadmium and other heavy metals found in an item).

Why does some Pyrex have a blue tint?

In the late 1930s and 1940s, Corning also introduced other products under the Pyrex brand, including opaque tempered soda-lime glass for bowls and bakeware, and a line of Pyrex Flameware for stovetop use; this aluminosilicate glass had a bluish tint caused by the addition of alumino-sulfate.

When did Pyrex switch to soda-lime glass?

In 1998, Corning sold the Pyrex brand to World Kitchen LLC, which stopped using borosilicate glass and started using soda-lime glass, according to Consumer Reports. Soda-lime glass is just ordinary glass. It's not resistant to thermal-shock, and it could shatter when going from one temperature extreme to another.

What is the difference between Pyrex and Pyrex?

**PYREX® items with CAPITAL LETTERS in the logo are safer**

Corning used a logo with capital letters and so does the French company manufacturing PYREX with Borosilicate Glass. The American company making pyrex® (lower case letters) makes their product from Soda-Lime glass.

What is Opal Pyrex?

Labels call them simply "Heat Resistant Opal Bowl Set" with no mention of Pyrex, but do note they are a product of Corning Glass Works. They can be distinguished from regular production, painted 400 series bowls that have been stripped of their color by their lack of a backstamp.

How many Pyrex patterns are there?

Or browse patterns by thumbnail image. There are currently 171 unique patterns listed on this page.

What is Agee Pyrex?

Imported pyrex glassware had been available in Australia since 1917. The brand name "Agee" was derived from the initials of the words "Australian glass". This name was used for several unrelated AGM product lines, such as preserving jars, glass bricks, and even pineapple pieces packed in glass containers.

Is all Pyrex labeled?

On the bottom of most every genuine Pyrex opalware article is an embossed set of markings which contains a variety of information. While technically a trademark, it is most often seen referred to as a backstamp.

When was pink Pyrex made?

The Pyrex Pink Stems pattern was released in 1968 as a promotional item. It was only ever manufactured in one shape: a small oval casserole dish.

How do you clean old Pyrex bowls?

Dish washing detergent will literally strip the sheen off your Pyrex and eventually wear away some of the color and the pattern. Instead, you must wash it by hand, in hot soapy water, using gentle dish washing soap like Ajax.

Can I microwave vintage Pyrex?

Yes, You Can Microwave Vintage Pyrex? Pyrex was designed and built to cook in the oven . You should allow the frozen Pyrex to warm up to room temperature first before putting it in a microwave. To avoid having your Pyrex crack, avoid the immediate change to extreme temperatures.

Why was Pyrex discontinued?

More than 750 million pieces of CorningWare have been manufactured. In 1998 however, due to slumping sales and retooling of manufacturing plants, Corning sold off the CorningWare and Pyrex lines to World Kitchen, LLC.

Are Pyrex dishes worth money?

Some vintage Pyrex can earn up to $3,000, reports NPR—nevermind that it's not dishwasher safe, and it's a pain to lug around compared to modern iterations. Sure enough, we found a 1950s set selling for $1,850 on Etsy, and one from 1960 for $700 on eBay. There's even a rare vintage Pyrex bowl mold going for $1,000.
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