Weber Pizza Stone Review

What this review is, and what it is not

We have not baked on this stone. What follows is every specification Weber publishes for the 8836, what those figures do and do not let you conclude, and how it compares with two cordierite stones whose makers publish more. Where a number is missing we say so rather than filling the gap, which on this particular product turns out to be most of the review.

The published specification, in full

Two of those absences matter. Thickness and mass are the inputs to every question anyone actually has about a stone - how long to preheat it, how far the surface drops when a cold base lands, whether it is a permanent fixture or something you lift in and out. Weber publishes a footprint and a material and stops there.

What the arithmetic can and cannot tell you

Because the footprint is known and the material is named, the answer can at least be bracketed. Using the roughly 1,700 kg/m3 effective density we derive for bakeware cordierite from three unrelated stones that do publish weights:

That is a genuinely wide bracket, and which one you are buying is not a detail. A 10 mm stone drops surface temperature noticeably under the first pizza and recovers quickly; a 15 mm stone does the opposite. The published 2-inch overall height does not settle it either, because that measurement includes the wire rack.

The carry rack is the actual product

Strip away the marketing and this is a cordierite rectangle with a wire cradle that lets you pick the whole thing up, pizza included, and walk it from the grill to a counter. On a kitchen counter that is convenient. On a grill it is the difference between a manageable job and juggling a 500 F slab with two towels.

It is also the feature that justifies the price gap. Judged purely as cordierite per dollar, the 8836 is expensive next to the plain rectangles in the stone roundup. Judged as a stone you will actually carry outdoors, the rack is doing real work that no other stone here offers.

Named cordierite, which is the part they got right

The listing says cordierite, and that single word rules out the unnamed clay bodies that fill this price band. Cordierite publishes a coefficient of thermal expansion of 2.9 to 4.8 micrometers per meter per kelvin, roughly half what a common alumina ceramic body does, and that margin is what lets a stone survive a grill. The full argument is in cordierite versus ceramic. For a stone Weber clearly expects to be used outdoors, naming the body is the most important thing on the page - and they did it.

Weber's care instruction is also correct, and unusually so: brush clean and rinse, no soap. Unglazed cordierite is porous, soap soaks in, and it comes back out of the stone the next time it is hot. Most listings in this category say nothing useful about cleaning.

The other Weber stone, and its catch

Weber also sells the CRAFTED Pizza Stone, a 16.3-inch round cordierite stone with a glazed finish, half an inch high out of the carton and specified as hand wash. It is a different proposition in one important way: Weber states that the CRAFTED frame and grates are required, with specific frame kits for Genesis and for Spirit and SmokeFire EX4 grills. It is a system part, not a stone you drop on any grate.

If you own a compatible Weber grill and already have the frame, it is a reasonable buy and the glaze solves the staining problem that every unglazed stone has. If you do not, the frame requirement turns a stone purchase into a system purchase.

Living with it on a grill

The 8836 is sold as a grill accessory and that is where its case is strongest, so it is worth being specific about how to use it there, because a grill is harder on a stone than an oven is.

Bring it up with the grill, never onto a hot grate. Put the stone on the cold grate, close the lid, and light the grill. A cold stone lowered onto a 500 F grate takes the entire temperature difference across its thickness in seconds, which is the classic way these break.

Indirect heat only. A burner directly beneath one part of the stone puts several hundred degrees of difference across a few inches of body. Burners off under the stone, on either side of it, lid down. The full setup is in the grill stone roundup.

Let it cool where it is. The rack makes it tempting to lift the stone off a hot grill and set it on a counter, and a cold worktop pulls heat out of one face fast. Use the rack to move it once it is no longer dangerous, not while it is at working temperature.

How its spec sheet compares

The three stones on this page are all cordierite. What separates them is how much their makers are willing to tell you.

That table is the review in miniature. Weber wins the row nobody else competes in and loses the three that decide how a stone behaves. Whether that is the right trade depends entirely on whether you carry the thing.

Who should buy it

Buy it if you cook on a Weber grill, you want a named-cordierite stone, and moving a hot stone with a pizza on it is a job you do regularly. The rack earns its place there.

Skip it if this is for a kitchen oven and you care about the numbers. For the same money or less, the Unicook 15 by 12 publishes its thickness, its weight and a temperature rating, and the Old Stone 16-inch round publishes all three plus a larger usable diameter. Both are also cordierite.

Do not buy it expecting a crust improvement over any other cordierite stone. Every stone in this material sits around an eighth of steel's thermal effusivity. If a pale base is the complaint, the answer is a different material, not a different brand - see stone versus steel.

The verdict

A competent cordierite stone attached to the best carry solution in the category, sold with a spec sheet that omits the two numbers a buyer most needs. If the rack is what you are buying, it is worth the money. If you are buying stone, buy one that tells you how thick it is.