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Ninja Crispi glass air fryer review

The cleanest answer to the coating question: food cooks inside glass, nothing nonstick touches it. Here's what that clever design gets you — and the capacity trade-off it asks in return.

By Stephen V.Updated How we review
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The Ninja Crispi is the air fryer we hand to anyone whose only hesitation is the coating. Its whole design is built around one idea: food cooks inside borosilicate glass containers with a stainless crisper plate, so nothing nonstick ever touches what you eat. It tops our non-toxic roundup for exactly that reason.

What makes it more than a novelty is that the glass containers do double duty — they store and reheat your leftovers, so the thing you cooked in goes straight into the fridge and back out. It's genuinely clever. The catch, and there's always one, is working capacity: this is not the machine for a big family batch. Here's the honest breakdown.

01
Ninja Ninja Crispi 4-in-1 Glass Air Fryer

Zero-coating cooking

Ninja Crispi 4-in-1 Glass Air Fryer

Borosilicate glassNo PTFE/PFAS4 qt + 6 cup450°F
8.0/10

The cleanest coating-free air fryer: food only ever touches borosilicate glass and stainless steel. The same containers store and reheat leftovers, and everything is dishwasher-safe. The trade-off is smaller working capacity than a big basket.

Materials
10
Capacity
6
Crisping
8
Cleanup
9
Value
7

Pros

  • Nothing nonstick touches food — glass and stainless only
  • Containers double as fridge storage and reheat vessels
  • Genuinely dishwasher-safe with no coating to protect
  • Compact and portable

Cons

  • Smaller working capacity than a 6-quart basket
  • Costs more than a coated basket of similar size

Don't buy this if…

you regularly cook big family batches — the glass containers hold less than a family-sized basket; look at the DualZone instead.

$159.99View on Amazon

$179.9911% off

Price as of Jul 19, 2026. Prices change — Amazon's at checkout is the one that counts.

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Who it's for

The Crispi is made for the coating-conscious cook who values a pure surface over maximum capacity: singles, couples, and anyone who mostly cooks for one or two and hates the idea of nonstick flaking into their food. The store-and-reheat glass containers make it especially good for meal-preppers and small households who reheat a lot of leftovers — you skip a whole washing-up step.

Who should skip it

Families and batch cookers. The glass containers hold less than a 6-quart basket, so feeding four in one go isn't its strength — the 8-quart Ninja DualZone is the better tool for that. And if you want a full-size non-toxic basket rather than glass, the PFAS-free ceramic Cosori TurboBlaze gives you capacity and a coating-free-of-PFAS surface, just not a bare one.

Running cost

The Crispi runs in the normal air-fryer band — a typical cook is a handful of cents at the U.S. average rate, and reheating in the same glass you cooked in is about as efficient as it gets for leftovers. Glass doesn't change the energy math versus a coated basket; it changes what touches your food. Work out your exact figure on the calculator.

Alternatives worth a look

If the capacity is too small but you still want to avoid PTFE, step to a PFAS-free ceramic basket (Cosori TurboBlaze or the value Pro LE) or a stainless oven-style machine — all on the non-toxic roundup. If the coating was never really the issue and you want maximum basket for the money, the Ninja AF141 is the workhorse.

How we picked

We did not lab-test this gear

Everyone in this category says they tested twenty air fryers. We have not lab-tested any of these, and we say so. What we did instead: compiled the published specifications — wattage, capacity, materials — worked out what each machine actually costs to run at the national electricity rate, read the manuals and owner reviews, and scored each one against a published rubric. The scores are judgments from documented research — not measurements we took, because we do not have a lab and we will not pretend we do. Where a number came from someone else's work, we name them in Sources.

Questions

Frequently asked

Is the Ninja Crispi actually non-toxic?
It's the most literal non-toxic air fryer we recommend: food cooks inside borosilicate glass with a stainless crisper, so no nonstick coating touches it at all. That's a genuine, checkable material design, not a marketing badge.
How big is the Ninja Crispi?
It uses a 4-quart glass container plus a 6-cup container, which is best for one to two people. For family-sized batches, a 6-quart basket or an 8-quart dual-basket is a better fit.
Can you reheat food in the Ninja Crispi containers?
Yes — that's a core part of the design. The same glass containers you cook in go into the fridge and back into the unit to reheat, which cuts down on both washing up and transferring food between dishes.
Is the Ninja Crispi worth the price?
If a coating-free surface is your priority, yes — it's the cleanest option and the store-and-reheat design adds real convenience. If you mainly need capacity or the lowest price, a coated basket like the Ninja AF141 gives you more for less.

Keep reading

Receipts

Sources

We do not run a testing lab, and we do not pretend to. Where a measured number came from someone else's work, we name them and link them. Where we could not verify something, we say so on the page rather than quietly leaving it out. Read our full method.