I Measured the Blackstone 8027's Stone at 656°F - Its Own Manual Says 650-750°F, and the Manual Is the Honest One

How it scores

What it is like to cook on

At 656°F this is a New York oven. A true Neapolitan base wants 750°F and up at the stone for a 90-second bake, and this will not give you that - which is a category, not a failing - a commercial deck oven that hits its own spec but not its headline has the same problem for the same reason. What it gives you is an even, controllable bake at two to four minutes, exactly what the manual recommends.

The stone is 14 inches of cordierite and it rotates, which is the feature that earns its keep: you are not reaching in to turn a pizza at 656°F. The two burners adjust independently - the left knob sets the top, the right sets the bottom. I ran both high because two elements at equal output give more even heat than an asymmetric setting. That is a cook's judgement, not a measurement, and I know people who run them differently.

The controls are where this oven loses people, and the hardware is not at fault - the manual is. It never explains how to balance the two knobs for a given style. That gap is the difference between a charred base and a good one, and it is a paragraph of writing that nobody at Blackstone has done.

The thing that should decide your purchase

I know a chef who has hit the E2 error. He ran one in a restaurant kitchen I worked in, which is harder use than most buyers will ever give it and worth saying so, and it kept coming back. I have known him since we were children, so I am not relaying a stranger's account.

Then I read all fifty-five reviews Blackstone publishes on its own product page. Four are the same error code. Two of those describe waiting five to six months for a warranty part, one of them since September 2025, and the most recent of them is from June 2026 - six weeks before I wrote this. A second code, E6, turns up once more in the same fifty-five, on an oven that stopped heating altogether.

The fault is ordinary. A six-month wait for a part is not. Blackstone's manual documents no error codes at all, so an owner who meets one has nothing to read and has to telephone. That is the review in a sentence: the oven is honest and the aftercare is not.

One more thing I found in those fifty-five: a glass panel that cracked on first use. I have now seen glass failures on three of the eight indoor electric ovens I have cooked on, which is worth knowing about a class of product sold on its viewing window.

And I want to give Blackstone credit for something most makers do not do. Those fifty-five reviews sit on Blackstone's own product page, and nine of them are one and two stars - including the ones about the parts wait, and one that simply says the company sold the buyer junk. Blackstone publishes them anyway. For contrast, I went through seventy-seven reviews on another maker's own shop in this same roster and not one of them was below three stars. A maker that shows you its own bad news is telling you something before you have read a word of it.

Blackstone's own shop calls this a griddle

The manual for this pizza oven contains griddle content - griddle-top seasoning, a link to a video about cleaning a griddle, griddle recipes. The shipping notice on the 8027's own product page reads “This is a big griddle.” And in those fifty-five reviews, a buyer who phoned for help balancing the two burners was emailed instructions for a different model entirely.

Three surfaces, one root cause, and the third one reached a customer who was asking for help. I mention it because it makes an otherwise honest manual look careless, and because the fix is a morning's work.

While I am on the manual: it prescribes no burn-in. Every other maker in this roster tells you to run the oven hot and empty before its first pizza - Breville at 750°F for twenty minutes, Chefman at 800°F, Ooni and Current with their own routines. Blackstone does not, and I would still do it.

The certification question, stated exactly

Blackstone is a trade name. The company that files its certifications is North Atlantic Imports LLC, and searching a certification directory for “Blackstone” returns nothing at all - which is how you end up publishing that a certified product is uncertified.

Searching Intertek's public directory for the Blackstone name returns twenty-two listings, and I opened every one. Model 8013 is there as an Electric Pizza Oven under UL-1026 - listed twice over, once by the importer and once by the factory that builds it, which is the normal pattern. Model 8010 is there under UL-858. The griddles and the gas products are there. Model 8027 is in none of the twenty-two, and no ETL, UL or CSA marking appears in its 36-page manual.

That is not the same as saying it is uncertified, and I want to be careful here. Intertek is one laboratory of several, a listing can lag, and Intertek told me directly that its own control numbers are internal and never published - so there may be no public file number to find even for a certified product. What I can tell you is what the public record shows, and what it shows is that the sibling model is in it and this one is not. I have asked Blackstone which body certifies the 8027 and to which standard, and their answer will appear here.

What it costs to run

1740 watts at 120V. That figure is not in the 36-page manual, which gives only “120V 60Hz” - it is in the alt text on the product page, which is a strange place to keep the one number every buyer of an electric appliance wants.

At 1740W the oven draws 14.5 amps, which is inside a 15-amp circuit but not by much, so give it its own socket rather than sharing with a kettle. A fifteen-minute preheat plus a few bakes comes to roughly half a kilowatt-hour - call it eight to ten cents at a typical US rate, though rates vary far more than ovens do, so work yours out with the running-cost tool I built for these ovens.

How it compares

Also worth considering

Current Model P Smart Pizza Oven

I measured its stone at 852°F, the hottest in this roster and 100.2% of what Current claims, and two independent testers reached the same figure within a few degrees. It costs $599 against this oven's $399 and it is on run-out, with a successor already on sale. If you want Neapolitan and can live with the price, it is the better oven.

Chefman Home Slice Indoor Electric Pizza Oven

The cheapest way into this category at times, and the only oven in the roster where I timed how long the stone itself took to be ready - twenty-six minutes. Its 800°F maximum needs manual mode - none of its six factory presets goes above 750°F, and its own manual sets the burn-in at 800°F by hand. Worth it if price leads your decision.

Certifications & safety

• Not found in ETL directory
• No cert mark in the manual
• Sibling 8013 is ETL listed

Who it's for

Anyone who wants a well-made New York, thin-crust or pan bake at $399 and is comfortable balancing two burner knobs by hand. It suits a cook who values a manufacturer whose documentation tells the truth even where its marketing does not.

Who should skip it

Anyone chasing a 90-second Neapolitan base - 656°F will not do it - and anyone who cannot tolerate a months-long wait for a warranty part, because that risk is real and currently reported.