How We Research
We compare products from their published specs and features; the verdicts below are our independent editorial opinions.
If you want pinpoint doneness on the food you already cook — steak, chicken, brisket, salmon, even air-fryer chicken breast — choose CHEF iQ Sense; if you need to cook a full family dinner in one appliance with two stacked baskets and almost no babysitting, choose Mirtan Double Stack Air.
• CHEF iQ Sense — biggest strength: Five sensors across two ultra-thin probes, WiFi range with no practical limit, and up to 70 hours per charge. It tells you exactly when food is done instead of guessing.
• CHEF iQ Sense — biggest trade-off: It is a thermometer, not a cooking appliance. It reads your food; it doesn't crisp it. You still need a grill, oven, smoker or air fryer to do the actual cooking.
• Mirtan Double Stack Air — biggest strength: 12.6-quart capacity in a vertical footprint, dual-layer baskets, sync cooking so both layers finish together, 1700W of rapid air circulation and 10 presets.
• Mirtan Double Stack Air — biggest trade-off: It's a single-purpose countertop appliance, and the plastic body with a 450°F ceiling won't suit anyone chasing high-heat searing.
• Pick CHEF iQ Sense if you care more about when food is done than how much you can cook at once.
• Pick Mirtan Double Stack Air if you're feeding several people and want one machine to handle mains and sides together.
CHEF iQ Sense is a smart wireless meat thermometer built around one idea: removing the guesswork. Two ultra-thin probes, each carrying four internal temperature sensors plus an ambient sensor, feed real-time readings to the CHEF iQ app over Bluetooth or WiFi. In practice that means flip reminders, rest timers and estimated cooking times land on your phone while you're doing something else entirely. The "unlimited range" claim is the WiFi part — you're not tied to the kitchen because the signal doesn't ride on Bluetooth alone.
The hardware is aimed at people who cook hot and cook often. The probes are rated to 1000°F, which covers grill grates, smoker chambers, oven roasting and air-fryer baskets without you worrying about a meltdown. The ultra-thin profile matters more than it sounds: a slim probe leaves a smaller hole, so less juice escapes and proteins stay intact. Both probes charge in the hub at the same time, and a full charge runs up to 70 hours — enough for an all-day brisket without a top-up.
Who should skip it? If you want an appliance that actually cooks the food, this isn't that. It's a precision instrument, and it only pays off if you're willing to pair it with the CHEF iQ app and use your phone while cooking. Someone who just wants to press a button and walk away should look at the Mirtan instead.
Mirtan Double Stack Air: Who It's For
Mirtan Double Stack Air is the opposite kind of purchase: one machine, one job, big output. The headline is the vertical double-stack design — two baskets stacked rather than side by side — which gives you 12.6 quarts of capacity while keeping the footprint at roughly 11 by 16 inches and standing about 19 inches tall. That's a genuinely useful shape for a small kitchen, because it grows upward instead of eating your whole counter.
The second layer isn't just extra space. Separating food top and bottom keeps flavors from bleeding into each other, and sync cooking technology times both layers to finish at the same moment. That solves the classic air-fryer problem where you cook the mains, then reheat them while the sides catch up. Here, dinner lands hot at once.
Under the hood it's a 1700W rapid air circulation system with a 450°F maximum, touch controls, a timer, temperature control, programmable presets and automatic shut-off. Ten preset programs (eleven, counting the general modes) mean a beginner can pick a mode and let the machine work. Removable baskets make cleanup straightforward after a messy cook, which matters if you'll use this most nights.
Who should buy it? Families and shared households — anyone cooking generous portions for several people on a weeknight schedule. It's also a strong fit for a small kitchen that can't spare the counter space a wide dual-basket fryer demands. If your goal is "crispy outside, juicy inside, minimal oil, one appliance, less cleanup," this is built for exactly that.
Who should skip it? Anyone cooking for one or two, since the capacity is the whole point and you'd be paying in counter space for volume you won't use. And anyone who wants a high-heat sear — 450°F is a fine air-frying ceiling, but it's not a broiler. The plastic body is also worth noting: it's light for a 22-pound machine, but it isn't a stainless build.
• Best for exact doneness → CHEF iQ Sense. Five sensors per probe and an ambient sensor reading tell you the internal temp in real time, which no preset can match.
• Best for feeding a family in one pass → Mirtan Double Stack Air. 12.6 quarts across two stacked layers, with sync cooking so both finish together.
• Best for small kitchens → Mirtan Double Stack Air. The vertical design trades width for height, so it claims less counter than its capacity suggests.
• Best for grilling, smoking and oven roasting → CHEF iQ Sense. The 1000°F probe rating and 70-hour battery are made for long, hot cooks.
• Best for zero-effort weeknight dinners → Mirtan Double Stack Air. Pick a preset on the touch panel, walk away, and let automatic shut-off handle the rest.
• Best for cooking two proteins to two different donenesses → CHEF iQ Sense. Two probes, two targets, one meal.
• Best for easy cleanup → Mirtan Double Stack Air. Removable baskets come out for washing; the CHEF iQ probes are dishwasher safe but the hub and app still need managing.
• Best for beginners who want guidance → CHEF iQ Sense. Hundreds of presets, USDA-approved doneness levels and video-guided recipes walk you through it.
I'd buy the CHEF iQ Sense. In my opinion, it's the more useful purchase because it upgrades every cooker you already own — grill, oven, smoker, air fryer — rather than adding one more appliance to the counter. The two probes, the 1000°F rating and the 70-hour battery cover far more of my cooking than a single countertop fryer can. That said, if your actual problem is "I need to feed four people dinner at the same time without juggling," the Mirtan Double Stack Air solves that specific problem better than any thermometer could, and the vertical design is genuinely clever for tight kitchens. Buy the thermometer to cook better; buy the air fryer to cook more at once.
FAQ
how to best air fryer chicken breast
how to best air fryer potatoes
Cut them evenly so they crisp at the same rate, and don't overcrowd the basket or they'll steam instead of brown. The Mirtan Double Stack Air's two separated layers help here — you can spread potatoes across both baskets and use sync cooking so everything finishes together at 450°F.
how to best air fryer salmon
Salmon goes from perfect to dry in a couple of minutes, which is exactly the kind of window a timer can't catch. The CHEF iQ Sense's internal sensors let you watch the temperature climb in real time, and its thin probe leaves a small hole so the fillet stays intact.
how to best air fryer sweet potato
Sweet potato needs longer and lower than white potato, so give it its own layer and its own time. The Mirtan Double Stack Air's dual-zone setup and 10 presets let you run sweet potato on one level while something else cooks on the other, without flavors mixing.
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