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Reference Desk
What is a CorningWare casserole worth?
For new retail, the median across 23 live in-stock US listings on 2 September 2026 was $59.99, running from $20.07 for a French White pie plate to $113.00 for a ten-piece set. For vintage Blue Cornflower, our whole pull surfaced exactly one genuine comparable — a P-83-B skillet and P-81-B dish together at $50.00 — which is not enough to publish a range from.
What new CorningWare costs
This is the part we can measure cleanly, so it goes first.
| Measure | Value |
|---|---|
| New-retail US listings matched | 23 |
| Median | $59.99 |
| Middle half | $37.91 – $85.99 |
| Cheapest / dearest | $20.07 / $113.00 |
| Distinct US retailers | 6 |
| Piece | Listed price |
|---|---|
| French White pie plate | $20.07 |
| 20oz pop-in mug | $22.00 |
| 1.5qt French Colors baking dish | $49.99 |
| Round stoneware two-piece set | $49.99 |
| 2.5qt oval casserole | $53.00 |
| Oval stoneware bakeware | $59.99 |
| Two 20oz meal mugs with lids | $74.99 |
| 2.5qt baker | $82.00 |
| French White 3qt rectangular baker | $86.00 |
| French White bakeware essentials | $98.00 |
| French Navy 10-piece oval set | $100.00 |
| 10-piece bakeware set | $113.00 |
Method: CJ product API, US advertisers, in-stock only, keyword pull filtered to titles containing the brand, non-cookware rows (t-shirts, earrings and two paintings) removed after reading each title, overseas department-store banners excluded, 2 September 2026.
Last verified 2 September 2026 against a live CJ product-feed pull of 240 in-stock US CorningWare listings, reduced to 30 US cookware rows and 23 new-retail rows by reading each title
The vintage market, and why this page will not price it
What the rest of the ‘vintage CorningWare’ results actually were, in the same pull: a vintage-design t-shirt at $20.00, a second at $38.00, a third at $25.00, Blue Cornflower earrings at $25.00, a 1989 Corning glass-blowing trucker hat at $25.00, two branded bags, and two original still-life paintings at $3,360 and $4,460.
That is a real finding rather than a joke at the catalogue's expense. The Blue Cornflower pattern has become a graphic — it sells on clothing more readily than the dishes sell on these particular venues.
The P-numbers, and how to use them
The single most useful thing on a piece of classic CorningWare is its model code. The two in our vintage listing were P-83-B and P-81-B.
- The code identifies the form and size, which is what you need when matching a lid to a dish — lids are where these sets break up.
- It is also the term to search with. ‘CorningWare P-83-B’ is a precise query; ‘vintage CorningWare skillet’ is not.
- A seller quoting the code has looked at the piece. A seller describing only the pattern may be working from a stock photograph.
- The code does not date the piece on its own. Forms ran for years.
Pyroceram or stoneware? It matters
Read the price table above carefully: two of its pieces, the round two-piece set and the oval bakeware, say stoneware. Classic CorningWare is Pyroceram, a white glass-ceramic introduced in 1958 by Corning Glass Works, able to take thermal shock and move between freezer, stovetop, oven, microwave, broiler and dishwasher. Stoneware is ceramic. It is a perfectly good baking material and it is not the same thing.
- Do not put a stoneware piece on a hob because a 1970s Pyroceram dish could take it.
- The brand name on the box is not a material specification. The product description is.
- Modern Pyroceram production has one clear advantage over the old: it is made without arsenic.
- The iconic pattern is Blue Cornflower, designed by Joseph Baum after the first test pattern, Wheat, tested badly and was dropped.
Material, dates and pattern history: the Wikipedia entry for CorningWare, read 2 September 2026.
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Frequently asked
What is a CorningWare casserole worth?
New retail is the reliable number: across 23 live in-stock US new-retail listings on 2 September 2026 the median was $59.99, from $20.07 for a pie plate to $113.00 for a ten-piece set.
What is vintage Blue Cornflower worth?
We cannot tell you from these sources, and we will not guess. Exactly one genuine vintage cookware listing appeared in our whole pull: two Blue Cornflower pieces, a P-83-B skillet and a P-81-B pint dish, at $50.00 together.
What do the P-numbers on CorningWare mean?
They are model codes moulded or printed on the piece, such as P-83-B or P-81-B. They identify the form and size and are the fastest way to match a lid to a dish.
Is old CorningWare better than new?
It is different. The classic pieces are Pyroceram glass-ceramic, designed to move from freezer to stovetop to oven. Much current CorningWare-branded bakeware is stoneware, which is not the same material and is not a stovetop product.
Why do the same dishes show three different prices?
Because department-store banners for other countries appear in US catalogue pulls with their own pricing. The same 2.5-quart baker was $82.00 at the US banner and $116.70 and $127.93 at two overseas ones.
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How this page was made. Drafted with AI (Claude); not yet independently re-checked. How we work