Every kitchen faces the same squeeze: too many single-use gadgets and not enough counter space. An all in one cooker directly solves this by consolidating pressure cooking, slow cooking, searing, steaming, rice making, and even yogurt fermentation into a single appliance. The real question is which configuration of functions, capacity, and power output actually matches the way you cook.
I’m Mohammad Maruf — the founder and writer behind Gardening Beyond. I’ve spent dozens of hours studying the technical specifications, reading through thousands of owner experiences, and comparing the pressure ratings, wattage outputs, pot materials, and safety architectures across the current market to identify which multi-cookers deliver consistent results and which cut corners that matter.
Whether you need a compact unit for quick weeknight meals or a large-capacity machine for feeding a crowd, the best all in one cooker saves time without forcing you to compromise on texture or flavor.
How To Choose The Best All In One Cooker
Before you add another appliance to your counter, understand the three specifications that determine whether a multi-cooker becomes a daily driver or a dust collector: pressure capability, pot build, and total cooking modes. Each interacts with your typical meal size and cooking style in a non-obvious way.
Pressure Rating and Wattage
Standard electric pressure cookers operate between 10 and 12 PSI (roughly 70 to 80 kPa). Higher pressure translates to faster cooking times for tough cuts of meat and dense beans. Wattage, typically between 1000W and 1350W, governs how quickly the unit reaches that pressure. A 1200W machine will heat up roughly 20 percent faster than a 1000W unit, which matters if you cook under a strict time budget.
Pot Material and Finish
Stainless steel pots with a tri-ply bottom excel at searing and deglazing but require more effort to clean if food sticks. Ceramic or nonstick coatings release food easily and are dishwasher-safe, but they cannot handle high-heat searing as aggressively and may wear over time. If you regularly brown meat before pressure cooking, prioritize stainless steel. If you prioritize quick cleanup, choose nonstick.
Cooking Modes and Programmability
Seven-in-one units cover the essentials — pressure cook, slow cook, sauté, steam, rice, yogurt, and warm. Twelve-in-one models add functions like sterilizing, cake baking, or delayed start. More modes do not always mean better results; a machine that does seven things well beats one that does twelve things passably. Look for at least one dedicated slow cook mode with a temperature range separate from the pressure cooking program.
Quick Comparison
On smaller screens, swipe sideways to see the full table.
| Model | Category | Best For | Key Spec | Amazon |
|---|---|---|---|---|
| Instant Pot Duo 6QT | 7-in-1 | Balanced everyday use | 1000W / 6QT / SS tri-ply | Amazon |
| CARORI 8QT | 12-in-1 | Large families | 1200W / 8QT / ceramic pot | Amazon |
| Instant Pot RIO 6QT | 7-in-1 | Wide-pot searing | 1000W / 6QT / anti-spin SS | Amazon |
| Hamilton Beach 9-in-1 | 9-in-1 | Searing + slow cooking | 1350W / 6QT / ceramic nonstick | Amazon |
| Crock-Pot MultiMeal | Dual-pot | Two dishes at once | 75W / 2x 3.7QT / nonstick | Amazon |
| All-Clad 7QT | Premium slow cooker | Stovetop-to-oven versatility | 7QT / cast aluminum insert | Amazon |
| Nuwave Combi Steam | Steam oven | Steam + air fry combo | 1800W / 16QT / 50-450°F | Amazon |
In‑Depth Reviews
1. Instant Pot Duo 7-in-1, 6 Quart
The Instant Pot Duo has become the benchmark for the category because it strikes a nearly ideal balance between function count, build quality, and price accessibility. Its 1000-watt heating element pushes the 6-quart stainless steel pot to pressure quickly, and the tri-ply bottom allows genuine searing without scorching. Thirteen one-touch smart programs cover the full range from soup to cake, and the included steamer rack adds immediate utility for vegetable sides.
Owners consistently report that the Duo replaces at least three standalone appliances — a slow cooker, rice cooker, and pressure cooker — while delivering faster cook times. The 18/8 stainless steel pot resists warping and cleans up well with a scrub, though it is not nonstick, so sticky rice or cheesy sauces require a short soak. The Easy-Release steam switch simplifies depressurization compared to older toggle valves, and the safety suite (overheat protection, lid lock, pressure limit) covers all the critical failure modes.
The 6-quart capacity comfortably serves a family of four to six, making it ideal for batch cooking soups, chili, or shredded meat for weeknight tacos. The only trade-off at this spec level is the moderate pressure rating — roughly 11.6 PSI — which means recipes designed for the 15 PSI stovetop units will need an extra few minutes. For most household recipes, however, the difference is negligible, and the convenience of set-and-forget operation far outweighs the minor time adjustment.
What works
- Proven 7-in-1 versatility with thousands of community recipes
- Stainless steel tri-ply bottom supports proper searing and browning
- Dishwasher-safe lid and inner pot simplify cleanup
- Over 10 integrated safety mechanisms provide reliable operation
What doesn’t
- Pressure operates at approximately 11.6 PSI rather than stovetop-level 15 PSI
- Stainless steel pot requires more soaking for stuck-on starches
- Control panel uses older push-button layout rather than full touchscreen
2. CARORI 12-in-1 Electric Pressure Cooker, 8 Quart
The CARORI 12-in-1 enters the mid-range slot with a higher 1200-watt heating element and a larger 8-quart capacity, targeting households that regularly cook for six to eight people. The ceramic inner pot is the standout feature here — it provides a natural nonstick surface that releases food easily and requires no chemical coatings, though it cannot tolerate the same high-heat searing that stainless steel handles. Fourteen one-touch programs guide users through pressure cooking, slow cooking, rice, yogurt, and sterilization.
At 70 kPa of pressure, this unit matches the speed of most premium mid-range cookers, cutting cooking times by up to 70 percent versus traditional methods. Owners note that the ceramic pot makes cleanup noticeably faster — a quick wipe often replaces a full scrub — but the pot is heavier than an equivalent stainless steel insert, which matters when lifting it out after a full batch of stew. The 24-hour delay preset adds real flexibility for overnight oats or timed dinner prep.
The 16-plus safety features include a lid safety lock, overheat protection, and pressure limit control, so new users can operate with confidence. A minor drawback is that the ceramic surface may develop hairline crazing over extended high-heat use, though this is cosmetic rather than functional. For a family that wants more capacity and faster heat-up than the base Instant Pot, the CARORI delivers strong per-dollar value.
What works
- 1200W element reaches pressure faster than 1000W competitors
- 8-quart capacity serves large families and batch preppers
- Ceramic nonstick pot simplifies cleaning and avoids chemical coatings
- 24-hour delay timer supports scheduled meal prep
What doesn’t
- Ceramic pot cannot match stainless steel for high-heat searing
- Heavier pot assembly can be awkward to handle when full
- Single temperature setting limits slow-cook variability
3. Instant Pot RIO 7-in-1, 6 Quart
The Instant Pot RIO is the same 7-in-1 concept as the Duo but with a wider, shorter pot shape that improves sautéing surface area and makes it easier to brown larger cuts of meat without overcrowding. The matte black finish and anti-spin pot design keep the insert locked in place during stirring, which eliminates the annoying pot rotation that can occur in older round-bottom models. It runs on the same 1000-watt platform as the Duo, so pressure performance is essentially identical.
Owners upgrading from a standard 3-quart or 4-quart model consistently report that the wider shape makes a meaningful difference — they can sear a whole chicken or a batch of ground beef in fewer batches, and the shorter height makes it easier to see inside while sautéing. The six-quart capacity still serves four to six people, and the dishwasher-safe lid and pot keep cleanup fast. All the same safety mechanisms carry over: overheat protection, lid lock, and controlled steam release.
The main trade-off is that the wider footprint takes up more counter space than the Duo’s narrower profile. If counter depth is tight, measure carefully before buying. Otherwise, the RIO is the better choice for anyone who uses the sauté function regularly and values a more stable, accessible cooking surface.
What works
- Wider, shorter pot improves sauté surface and visibility
- Anti-spin base keeps pot stable during stirring
- All 7 core functions with 13 smart programs
- Dishwasher-safe components simplify daily cleaning
What doesn’t
- Wider footprint demands more dedicated counter space
- Pressure rating matches Duo at roughly 11.6 PSI
- Matte finish shows smudges more than brushed stainless
4. Hamilton Beach 9-in-1 Slow Cooker, 6 Quart
The Hamilton Beach 9-in-1 takes a different approach by centering its design around the slow cooker function rather than pressure cooking. Its 1350-watt element is the highest wattage in this comparison, enabling rapid heat-up when searing or browning directly in the ceramic nonstick pot. The rectangular 6-quart shape fits roasts and whole chickens more naturally than round pots, and the PFAS-free nonstick surface simplifies cleanup significantly.
Nine cooking options include high and low slow cook, white rice and whole grain programs, sear/brown, sauté, roast, steam, and keep warm. Owners highlight the sear feature as the real differentiator — you can brown a chuck roast in the same pot you slow cook in, eliminating a stovetop pan and preserving all the browned bits for the broth. The delayed start function works with rice, grains, and steam modes, giving you a 1- to 15-hour window to program meals in advance.
The trade-off is the absence of high-pressure cooking. If you routinely cook dry beans or tough brisket in under an hour, this unit cannot match a pressure cooker’s speed. For households that prefer the hands-off, all-day cooking rhythm of a slow cooker but want the versatility to sear and steam in the same vessel, the Hamilton Beach delivers superior build quality and a more modern interface than traditional ceramic slow cookers.
What works
- 1350W element provides fast, even searing and browning
- PFAS-free ceramic nonstick releases food easily
- Rectangular pot fits larger roasts and chickens better than round
- Delayed start up to 15 hours for meal planning
What doesn’t
- No pressure cooking function limits speed for beans and tough meats
- Initial learning curve without printed instructions
- Lacks a dedicated delayed start option for slow cook mode
5. Crock-Pot MultiMeal Multicooker
The Crock-Pot MultiMeal fundamentally rethinks the all-in-one by splitting the cooking volume into two independently controlled 3.7-quart nonstick pots. This lets you cook two different dishes — say, a braised pot roast in one pot and steamed rice in the other — on separate timers that synchronize to finish simultaneously using DualSync Technology. The unit replaces over 30 separate tools, including stock pots, dutch ovens, slow cookers, steamers, and food warmers.
Each pot supports slow cook, sear/sauté, bake, rice/steam, and keep warm. The bake function operates at 300°F or 350°F, which opens up desserts like cobblers or small bread loaves. Owners living in one- or two-person households particularly appreciate the ability to prepare an entrée in one pot and a side in the other without pulling out multiple pans. The ceramic-coated nonstick finish wipes clean easily, and the pots are oven-safe up to 450°F for finishing dishes with a crisp top.
The downside is that each pot is relatively shallow, so you cannot cook a large whole chicken or a big batch of chili in a single vessel. The unit also runs hotter than traditional slow cookers, so users may need to experiment with cooking times on the low setting. For small households that value meal variety over sheer volume, this is a genuinely unique solution that no single-pot competitor replicates.
What works
- Two independent pots allow simultaneous cooking of different dishes
- DualSync Technology coordinates finish times automatically
- Ceramic-coated nonstick cleans up with minimal effort
- Pots are oven-safe to 450°F for finishing and baking
What doesn’t
- Individual 3.7QT pots are too small for large roasts or batches
- Runs hotter than standard slow cookers, requiring timing adjustments
- Lid and pots are not dishwasher-safe
6. All-Clad Stainless Steel Electric Slow Cooker, 7 Quart
The All-Clad slow cooker occupies the high-end quiet luxury segment of this category. Instead of a plastic-lined heating base with a ceramic crock, it uses a removable cast aluminum insert with a nonstick ceramic coating that you can take directly to the stovetop for searing or into the oven for finishing. The 7-quart oval shape accommodates large cuts of meat and whole poultry comfortably, and the brushed stainless steel exterior resists fingerprints better than glossy black plastic.
Four preset modes — Low, High, High/Low automatic, and a six-hour keep warm — keep the interface refreshingly simple compared to multi-function units. Owners who have owned the previous generation of All-Clad slow cookers report that the heating element lasts reliably over a decade with regular use. The stainless steel lid seals tightly without dripping condensation onto the counter, and the digital LCD timer displays remaining cook time clearly.
The major limitation is that this unit is a slow cooker first and foremost — it does not pressure cook, steam rice, or make yogurt. If your primary cooking style is low-and-slow braising, and you value a premium material build that can double as a stovetop pan, the All-Clad justifies its positioning through longevity and cookware-grade construction. It is not the right choice for someone who wants a single appliance that pressure cooks beans in 30 minutes.
What works
- Cast aluminum insert works on stovetop and in oven up to 450°F
- 7-quart oval shape handles large roasts and whole chickens
- Stainless steel lid seals well and reduces condensation drip
- Proven durability with owners reporting 10+ year lifespans
What doesn’t
- No pressure cooking, rice, or yogurt functions
- Higher tier investment compared to feature-rich competitors
- Insert is not dishwasher-safe despite nonstick coating
7. Nuwave Combi Steam Oven, 16 Quart
The Nuwave Combi Steam Oven is the most technically ambitious unit in this list, functioning as a countertop steam oven, air fryer, sous vide machine, toaster, and dehydrator in a single 16-quart stainless steel chassis. Its 1800-watt heating system can be adjusted from 50°F to 450°F in 1°F increments, and the steam infusion is controllable from 10 to 90 percent relative humidity. This means you can air fry fries with dry heat for crispness or bake bread with steam for a chewy crust.
One hundred twenty built-in presets cover nearly every common food type, from steak and fish to pastries and eggs. Owners praise the sous vide function because it operates without bags or water baths — the steam chamber maintains precise temperature control that renders fat gently without overcooking. The PFAS-free stainless steel interior and included air fry basket, tray, and rack make this a genuine nine-appliance replacement if you are willing to learn the preset system.
The main caveats are the learning curve and the recovery behavior. Some users report that cooking above 375°F triggers a cooldown cycle that can interrupt the cooking rhythm, and the presets require a few trial runs before they feel intuitive. The 16-quart capacity is generous for a countertop oven but the cooking cavity is shorter than a traditional wall oven, so large casserole dishes may not fit. For the cook who values steam-assisted texture and precision temperature control above all else, the Nuwave offers capabilities no pressure cooker or slow cooker can replicate.
What works
- Adjustable steam infusion from 10% to 90% for versatile cooking textures
- 1°F precision from 50°F to 450°F for sous vide and baking
- 120 presets reduce guesswork across dozens of food types
- PFAS-free stainless steel interior with dishwasher-safe accessories
What doesn’t
- Presets require a learning curve to master
- High-temperature cooking above 375°F may trigger cooldown pauses
- Large capacity but shorter cavity may not fit standard casserole dishes
Hardware & Specs Guide
Pressure Rating (PSI / kPa)
Standard electric pressure cookers operate between roughly 10 and 12 PSI (70 to 80 kPa), compared to stovetop models that reach 15 PSI. Lower pressure adds 10 to 20 percent to cook times for dense foods like dried beans or tough brisket. High-pressure-rated units (e.g., the CARORI at 70 kPa) still reduce cooking time by about 70 percent versus traditional methods, but the gap versus stovetop is real for precision recipes. If you frequently cook meals that depend on exact pressure timing, look for a unit that clearly states its kPa rating.
Wattage and Heat-Up Speed
Wattage ranges from 1000W to 1800W across this category. Higher wattage directly reduces the time the unit spends coming up to pressure or reaching searing temperature. A 1350W unit (Hamilton Beach) will reach sauté heat roughly 25 percent faster than a 1000W unit. However, the difference in steady-state cooking (simmering or slow cooking) is negligible. Prioritize wattage if you are impatient during the heat-up phase; otherwise, 1000W is adequate for most households.
Pot Material and Heat Retention
Stainless steel 18/8 with a tri-ply base (Instant Pot Duo, RIO) provides excellent heat distribution for searing and deglazing but requires more effort to clean starches. Ceramic-coated nonstick (CARORI, Hamilton Beach) releases food easily but cannot tolerate the same high searing temperatures and may show wear over time. Cast aluminum with a nonstick coating (All-Clad) offers the best of searing performance and easy cleaning, but it is heavier and significantly more expensive. Aluminum core pots also conduct heat more evenly than stainless alone.
Safety Architecture
All modern electric pressure cookers include multiple redundant safety systems: lid position sensors that prevent pressurization when the lid is not sealed, overheat protection that cuts power if the base gets too hot, pressure limit valves that release excess steam, and anti-blockage shields that prevent food particles from clogging the steam vent. Units with 16 or more safety mechanisms (CARORI) add features like leak-proof seals and additional lid lock sensors. For slow-cooker-only units, safety is simpler — focus on stable base weight, cool-touch handles, and a secure lid latch for transport.
FAQ
Can I use an all in one cooker as a replacement for my rice cooker?
Why does my pressure cooker take longer than the recipe says?
Is it safe to leave a multi-cooker unattended?
What size all in one cooker should I buy for a family of four?
Final Thoughts: The Verdict
For most gardeners and home cooks, the best all in one cooker winner is the Instant Pot Duo 6 Quart because it combines the most proven 7-in-1 functionality with a stainless steel pot that actually sears, a 1000-watt element that gets to pressure quickly, and a price point that makes it accessible without cutting corners. If you regularly cook for six or more people and want faster heat-up, grab the CARORI 8 Quart. And for those who prioritize stovetop-to-oven versatility and premium build quality above feature count, nothing beats the All-Clad 7 Quart Slow Cooker.