OXO 9-Inch Glass Pie Dish Review (2026): The See-Through Pie

Why you should trust this review

I bought this OXO 9-inch glass pie plate at retail; OXO did not provide a sample and had no part in this review. I bake pies most weekends and have spent years frustrated by opaque pans that hide the one thing I most want to see, the color of the bottom crust. Glass is the only material that can show you that in real time, so the question I set out to answer was whether OXO’s version is durable enough to trust from freezer to hot oven, since glass bakeware has a reputation for cracking.

I had a ceramic Emile Henry, a tempered-glass Pyrex, and a cheap aluminum pan on the bench for direct comparison, so my impressions of this pan are relative to real alternatives rather than formed in isolation. Every observation here comes from my own baking over six months.

How we evaluated

I baked 22 fruit pies to the same recipe over six months and scored each one’s bottom crust with a snap test so the comparison was consistent. I tracked bake time to a target internal filling temperature against the Emile Henry and the Pyrex to see whether glass kept pace with ceramic and metal.

The durability test was the one I cared about most: I assembled pies, froze them overnight, and then baked them straight from the freezer at high heat for ten cycles, inspecting the glass under raking light after each one for stress cracks. I also tested the headline feature directly by photographing the bottom crust through the side wall every few minutes during a bake, and I inspected the pan monthly for scratches, chips, and water spotting.

Visual checking: the feature only glass can deliver

This is the whole reason to buy a glass pie plate, and it is genuinely useful. Through the clear side wall I can watch the bottom crust transition from pale and raw to golden while the pie is still in the oven. With ceramic or metal you are guessing, or pulling the pie out and tipping it to peek, which loses heat and risks a slide. Here the information is just there.

Across the 22 pies, that visibility caught two underbaked bottoms I would have missed in an opaque pan, the kind of soggy-bottom result that ruins an otherwise good pie. For anyone who cares about crust precision rather than just getting something edible to the table, being able to confirm the bottom is set before you commit to pulling it is worth a lot. It turns bottom-crust doneness from a guess into something you can see.

Thermal shock resistance: real borosilicate earns its name

The durability worry with glass bakeware is cracking under a sharp temperature swing, and this is where the material matters. This pan is genuine borosilicate, not the soda-lime tempered glass that carries the same familiar brand name on older pans. Across ten freezer-to-hot-oven cycles, inspected under raking light each time, the OXO showed no stress cracks at all.

That is meaningful because frozen-pie convenience baking is exactly the scenario that makes tempered glass nervous, and where user reports of cracking tend to come from. Borosilicate handles large, fast temperature swings that tempered glass is not rated for. If you assemble pies ahead and bake from frozen, this construction is the safer choice, and over six months it never gave me a reason to doubt it. I would still avoid setting a hot pan directly on a cold wet surface, but that is basic glass care.

Bottom crust browning and everyday build

On crust crispness the OXO is solid rather than class-leading. In snap testing across the 22 pies, the bottom crusts came out crisper than the cheap aluminum pan but slightly softer than the ceramic Emile Henry. Glass conducts heat to the crust quickly, so the OXO actually finished its bottom a bit ahead of the ceramic, but ceramic holds heat more steadily through a long bake and delivers a marginally crisper, sturdier crackle. For most home pie standards this pan is plenty crisp; only against a dedicated ceramic does it give up a little ground.

On build, the pan weighs more than aluminum and the wider rim is a genuine improvement over the older Pyrex, giving more surface to crimp and flute raw dough so the edges hold their shape through the bake. The integrated rim handles lift cleanly. Cleanup is easy because glass has no microporous surface for filling to bond to, so stuck-on residue wipes off in seconds and it is dishwasher safe. The only nuisances are water spots that show on glass after a dishwasher cycle and the need to use a non-metal knife if you cut and serve in the pan, since metal will scratch the surface over time.

Who should buy the OXO 9-inch glass pie plate?

Buy it if you want to watch your bottom crust brown in real time, if you bake pies from frozen and want genuine borosilicate that can take the shock, or if you want a credible, durable pie pan without paying ceramic prices. For weekend bakers who care about crust but do not need the absolute crispest result, this hits a smart middle.

Skip it if you chase the crispest possible bottom crust, where a ceramic pan is the worthwhile upgrade, or if you bake only a pie or two a year and a basic tempered-glass plate is all you need. It is also not the pick if you routinely cut and serve with a metal knife straight in the dish, since that will mark the glass.

The verdict

Six months and 22 pies in, the OXO 9-inch glass pie plate delivers the one thing only glass can, a real-time view of the bottom crust, and backs it with genuine borosilicate that survived ten freezer-to-oven cycles without a crack. The crust is good rather than the crispest, and you will wipe the occasional water spot, but neither is a real knock against it. For a durable, see-through pie pan at a sensible price, this is the one I keep reaching for.