The Air Fryer That Learned to Cook in Stages.
DREO ChefMaker is what happens when an air fryer stops thinking only about hot air. It adds a leave-in temperature probe, a water atomizer and software that changes heat and moisture as the food moves toward doneness. The interesting part is not that it is smart. It is that it tries to automate the judgment cooks normally apply minute by minute.
By Dr. Rob Urban · On convection, evaporative cooling, probe feedback, moisture control, browning, multi-stage cooking and why the next generation of countertop appliances may be defined by control systems rather than heating elements
First, the current-model check
ChefMaker remains DREO's current and only Combi Fryer in the 2026 lineup. There is no ChefMaker 2 displacing it.
The original machine is still the right one for this story.
DREO's current U.S. catalog lists the ChefMaker Combi Fryer at 6 quarts, 1800 watts, a 100 to 450 degree Fahrenheit chamber range, a 200 milliliter water tank, Wi-Fi, a 4.3-inch display and a compact body measuring 10.59 by 15.67 by 14.65 inches.
Those numbers make it look like an upscale air fryer.
That undersells the architecture.
ChefMaker combines three systems that normally live separately in home cooking: high-velocity convection heat, a leave-in food-temperature probe and controlled water atomization. Software coordinates all three.
That is why DREO calls it a Combi Fryer rather than merely another air fryer.
The product borrows the logic of a commercial combi oven, where cooks manage hot air and humidity together, but it compresses the idea into a six-quart basket appliance.
The result is not a tiny restaurant oven.
It is something stranger and more interesting.
A countertop cooker that tries to reproduce the sequence of decisions behind a good cook rather than simply hold one temperature until a timer expires.
The air fryer solved one problem exceptionally well
Move hot air fast enough and small food cooks quickly with serious surface browning.
An air fryer is fundamentally a compact high-convection oven.
A heating element raises air temperature. A powerful fan moves that air rapidly around the food. The small chamber keeps the airflow close to the surface.
That combination increases heat transfer compared with the stiller air in many conventional ovens.
The result is fast cooking and efficient surface drying, which helps foods crisp and brown.
But the same behavior that makes an air fryer good at crispness creates a weakness.
Hot, dry, fast-moving air is excellent at carrying moisture away.
That can become a problem when the food needs enough time for its interior to reach the target temperature.
A thick steak or chicken breast presents two jobs at once.
The surface wants intense heat and drying.
The center wants time.
If you attack both with one fixed high-temperature stage, the exterior can become overdone before the core reaches the desired temperature.
Experienced cooks solve this by changing the cooking environment.
They lower heat.
Raise it later.
Rest the food.
Add moisture.
Use a thermometer.
Move between appliances.
ChefMaker's central idea is to make those changes automatically.
Time is a rough proxy for what actually matters
The probe lets the machine watch the food instead of watching only the clock.
A recipe that says “cook for 18 minutes” is making assumptions.
It assumes the food weighs roughly what the recipe writer used. It assumes similar thickness. It assumes a similar starting temperature, moisture content, fat distribution and appliance behavior.
Those assumptions are why cooking times work until they do not.
Core temperature is more direct.
DREO's leave-in cook probe uses two temperature sensors so the system can monitor the food during the cook and adjust its program as conditions change.
This is one of the most important engineering choices in the appliance because it closes the feedback loop.
The machine no longer has to infer all progress from elapsed time.
It can observe thermal progress inside the food.
USDA's food-safety guidance makes the practical value of internal temperature clear: color and surface appearance are not reliable indicators that meat has reached a safe minimum temperature. A food thermometer is the reliable way to verify internal temperature.
ChefMaker uses the same physical principle for control rather than only final verification.
The probe becomes a sensor inside the process.
That is a classic industrial automation move.
Do not control only the heater.
Measure the result the heater is trying to produce.
The water tank is the clue that this is not an ordinary air fryer
A mist of water gives the control system another way to manage heat transfer.
DREO says ChefMaker's atomization system sprays a fine water mist during selected cooking stages.
The company describes droplets on the order of 50 microns.
Why put water into a machine whose reputation depends on crispness?
Because cooking is not a single-stage race toward maximum dryness.
Water changes the thermal environment around the food.
As water evaporates, it absorbs energy. That evaporation can moderate the local temperature and reduce the rate at which the surface dries and overheats during stages when the interior still needs time.
In commercial cooking, this is the core attraction of combi ovens.
They combine convection and steam or controlled humidity so cooks can manipulate both heat and moisture.
The British government's Energy Technology List describes commercial combination steam ovens in almost exactly those terms: hot-air convection provides baking, roasting and browning, while humidity can help retain moisture and create a different cooking environment.
ChefMaker does not reproduce a full commercial combi oven's steam-generation architecture.
It takes the governing idea and shrinks it.
Use dry convection when surface browning is useful.
Use controlled water atomization when slowing surface dehydration is useful.
Switch between those states according to the food's measured progress.
That additional actuator gives the software more authority over the cook.
Heat determines how fast energy enters. Moisture changes how the surface loses water and temperature. ChefMaker controls both.
Super convection
Fast-moving hot air transfers energy and promotes surface drying, browning and crisping.
Atomization
Fine mist can reduce surface drying and moderate the chamber environment during selected stages.
Probe feedback
Temperature readings let the controller decide when the food is ready to move from one thermal strategy to another.
This is where the product earns the word “smart”
CombiCook is a sequence, not a preset temperature.
Many smart kitchen appliances are conventional appliances with a remote-control app attached.
ChefMaker is more interesting because software participates in the cooking physics.
DREO's CombiCook system coordinates probe data, convection heat, water atomization and time through multiple stages.
That matters because good cooking often depends on deliberately changing conditions as the food evolves.
The earliest stage might emphasize gentle heating so the center progresses without abusing the surface.
Another stage may introduce mist to manage moisture loss and temperature.
The final stage can become hotter and drier to build color and crust once the interior is close enough to target that intense heat no longer has time to overcook it.
This is conceptually similar to reverse searing.
Cook the inside carefully first.
Finish the surface aggressively later.
ChefMaker's contribution is not inventing that culinary logic.
It is encoding the logic into an appliance that can react to measured temperature rather than asking the user to execute every transition manually.
That distinction is central to modern consumer product design.
The best automation does not merely remove button presses.
It captures expert sequencing.
Juiciness and browning pull in opposite directions
The surface has to get dry enough to brown while the interior stays wet enough to be pleasant.
This tension defines a huge amount of cooking.
A juicy interior contains water.
A deeply browned surface requires enough surface drying for temperatures to rise well above the boiling point of water locally.
As long as a surface remains heavily wet, evaporation consumes energy and holds that surface near the temperature where water changes phase.
Once the surface dries, its temperature can climb and browning reactions accelerate.
This is why a wet steak placed in a pan browns poorly until the surface moisture is driven away.
It is also why blasting a thick piece of meat with high heat from the beginning can be self-defeating. You may get the exterior where you want it while creating a broad band of overcooked meat underneath.
ChefMaker's architecture recognizes that the best environment for the center and the best environment for the crust are not necessarily the same environment at the same time.
The machine can delay aggressive browning until later.
That is the sophisticated part.
“Air fry hotter” is not the solution.
Control the order in which the food experiences different heat and moisture conditions.
The product is therefore much closer to a tiny programmable cooking process than to a basket with a fan.
Three modes reveal three different ideas about control
Chef Mode automates technique. Probe Mode exposes the target. Classic Mode behaves more like the appliance category people already understand.
DREO organizes ChefMaker around three cooking modes.
Chef Mode is the most distinctive. The user chooses an ingredient or program and the appliance executes its multi-stage logic automatically.
Probe Mode gives the user more authority over the target, using the inserted temperature probe as the primary completion signal.
Classic Mode behaves more like a conventional air fryer, letting the user choose time and temperature directly.
That arrangement is smart because expertise is not binary.
Some people want the appliance to make the decisions.
Some want precise temperature control without surrendering the rest of the method.
Some simply want a fast convection oven.
Good interfaces let those users coexist.
The 4.3-inch display matters for the same reason.
This machine has more states and decisions than a two-knob air fryer. The interface has to explain where the cook is in the sequence, what the probe is reporting and what the appliance expects next.
The DREO app extends that workflow with guided recipes, process updates and notifications, but the appliance itself still carries a usable local interface.
That is important.
A cooking appliance should not become helpless because a phone is in another room.
The window looks cosmetic until you think about trust
Automation works better when the human can still inspect what the machine is doing.
ChefMaker's basket includes a transparent viewing window.
That sounds like a minor convenience.
It is actually a useful human-factors feature.
Food changes visually while it cooks.
Color develops.
Fat renders.
Edges darken.
Sauces reduce.
Even if the control system is making the decisions, the cook wants evidence.
A black box becomes easier to trust when the box is literally less black.
This is especially important in first-generation automated products.
Users do not yet have years of learned expectation about what “Chef Mode” means.
They know what browned chicken looks like.
The window lets old intuition coexist with new automation.
That is good interface design.
Automation should not remove useful sensory feedback simply because the algorithm has sensors of its own.
Food safety and culinary doneness are related, but not identical
The probe can help with both, provided the user understands the target.
USDA makes an important distinction between safety and doneness.
Safety is about achieving enough time and temperature to reduce harmful microorganisms to a safe level.
Doneness is sensory.
Texture.
Juiciness.
Appearance.
A sophisticated cooker has to respect both.
For whole cuts of beef, pork, veal and lamb, USDA lists 145 degrees Fahrenheit followed by a three-minute rest as the safe minimum. Ground meats are listed at 160 degrees. Poultry is 165 degrees.
Those are food-safety thresholds, not universal culinary targets for every possible preparation.
ChefMaker's probe does not remove the need to know which foods require which safe internal temperatures.
What it does is eliminate some of the guesswork involved in reaching a target consistently.
The probe also has to be placed correctly.
USDA emphasizes the thickest portion of the food and avoiding bone, fat and gristle because a sensor in the wrong place can return a misleading reading.
Automation is only as good as the signal it receives.
A beautifully tuned control loop with a badly placed probe is still controlling the wrong measurement.
Why the small chamber is an advantage
Six quarts is not generous. It is controllable.
Large ovens have flexibility.
Small chambers have responsiveness.
ChefMaker's six-quart cooking volume means the heater and fan are working on a relatively small mass of air. Temperature changes can happen quickly. Moisture additions can affect local humidity quickly. Air velocity can remain high around the food.
That makes multi-stage control practical.
If software decides to move from a gentler phase into an aggressive browning phase, the chamber can respond faster than a full-size oven with a much larger thermal mass.
This is the same reason compact air fryers became so good at weeknight cooking in the first place.
Smallness is part of the thermodynamic design.
The compromise is capacity.
ChefMaker is not a family-size combi oven and does not pretend to be one.
Its architecture works best when the food fits the control environment the engineers designed around.
This is a recurring lesson in manufacturing and product engineering.
Performance is often easier to optimize when the use case has boundaries.
A young brand picked a surprisingly mature cooking idea
ChefMaker arrived in 2023 by borrowing professional combi logic and translating it for the countertop.
DREO publicly debuted ChefMaker in May 2023 after roughly two years of research and development.
The product reached the market that summer.
At the time, the interesting thing was not the air fryer form factor.
Air fryers were already everywhere.
The interesting move was choosing a professional cooking concept as the point of differentiation.
Commercial combi ovens have long combined convection and steam to give chefs control over heat and humidity in one chamber.
They are powerful because moisture is treated as a controlled variable instead of an accident.
DREO's challenge was to reduce that idea until it fit a consumer appliance price, a six-quart basket and a standard 120-volt, 1800-watt electrical envelope.
That required simplification.
No boiler-sized steam generator.
No restaurant-scale cavity.
No professional operator programming dozens of parameters.
Instead: a small water reservoir, fine atomization, a probe, a fast convection system and software that translates recipes into stages.
This is exactly the kind of translation that makes the Things Worth Wanting series interesting.
The underlying principle is established.
The product innovation is making that principle accessible in a new context.
Professional kitchens establish the value of controlling convection heat and humidity together inside one cooking chamber.
Compact high-velocity convection becomes a mainstream home cooking format because it is fast, efficient and exceptionally good at surface crisping.
DREO says ChefMaker underwent roughly two years of research and development around multi-stage cooking, sensing and moisture control.
ChefMaker makes its public debut as DREO's new Combi Fryer platform.
The original ChefMaker remains the current Combi Fryer in DREO's live product lineup, supported by an expanding smart-kitchen ecosystem.
The deeper product lesson
Kitchen appliances are moving from timed heating toward sensed cooking.
For most of consumer-appliance history, the control model was crude.
Choose temperature.
Choose time.
Hope the food matches the assumptions.
That model made sense when sensing was expensive and embedded computing was limited.
It makes less sense now.
A temperature probe is cheap enough to become part of the appliance.
Processors can run control logic continuously.
Wi-Fi can deliver new recipes and firmware.
A color touchscreen can explain multi-stage programs.
The interesting future is not a refrigerator that can tweet.
It is cooking equipment that measures what is happening and changes the process intelligently.
That is the same transition industrial systems made decades ago.
Open-loop control says, “apply this input for this long.”
Closed-loop control says, “measure the result and adjust the input.”
ChefMaker is valuable as an artifact because you can watch that transition arriving in an appliance category that had been dominated by timers.
Why it goes in the digital time capsule
Because it made moisture, temperature and time into variables one small appliance could coordinate by itself.
The ChefMaker belongs here because it does more than make an air fryer smarter.
It changes the unit of automation.
A normal air fryer automates heat and time.
ChefMaker tries to automate a cooking strategy.
It measures internal food temperature.
It adds water when moisture control is useful.
It moves air aggressively when convection is useful.
It changes stages as the food progresses.
It exposes those decisions on a screen while keeping the food visible through the basket window.
None of the underlying techniques is new.
That is part of why the product is interesting.
Great consumer products often emerge when established professional techniques become cheap, compact and automated enough to escape their original environment.
Commercial combi ovens did not need ChefMaker to prove that humidity and convection can work together.
Home cooks needed someone to translate that idea into an appliance that fits under a cabinet.
DREO did.
And it did so without turning the machine into a culinary science project the user has to manage.
Choose the food.
Insert the probe.
Let the machine change the environment as the cook evolves.
That is the shift worth preserving.
Not smart cooking as marketing language.
Sensed cooking as a new appliance architecture.
A few practical questions
About the DREO ChefMaker Combi Fryer
Is DREO ChefMaker still the current model?
Yes. DREO's current 2026 Combi Fryer collection still centers the original ChefMaker. There is no current ChefMaker 2 listed as its replacement.
How large is the ChefMaker?
DREO lists a 6-quart capacity, dimensions of 10.59 by 15.67 by 14.65 inches and a weight of 15.36 pounds.
What is the temperature range?
The current specification is 100 to 450 degrees Fahrenheit with 1800 watts of rated power on a 120-volt supply.
What does the water tank do?
The 200 milliliter reservoir supplies the water-atomization system used during selected CombiCook stages to influence moisture loss and the cooking environment.
What is different about ChefMaker compared with a normal air fryer?
In addition to high-speed convection, ChefMaker adds a leave-in dual-sensor cook probe, controlled water atomization and multi-stage software that coordinates those systems as the food cooks.
What are the three cooking modes?
Chef Mode automates ingredient-based multi-stage programs, Probe Mode centers the cook on a measured internal-temperature target, and Classic Mode provides more conventional time-and-temperature air-fryer control.
Does the probe replace normal food-safety guidance?
No. The probe is a measurement tool. Users still need to choose safe targets for the food being prepared and position the probe correctly in the thickest appropriate portion.
Does ChefMaker require the app?
No for basic operation. The appliance has its own 4.3-inch display and local controls. The DREO app adds guided recipes, progress updates and notifications.