If you’re looking for a single countertop appliance for your kitchen that can air fry, roast, bake, dehydrate, and rotisserie a whole chicken, the OIMIS Smart Stainless Steel Air Fryer Oven is one of the most talked-about options in the air fryer oven category. This multi-function kitchen appliance is a great option for those looking for large capacity. In this guide, we will cover everything you need to know before buying — features, specs, pricing, cleaning, recipes, and answers to the most common questions people ask about it.
Welcome to Slice Toaster, a world of air fryer toaster ovens. I’m pretty sure that you will get all the information that you want about this large-capacity oven. Now, in the data, we will tell you the real facts, specs, and features about the toaster oven with air fryer as described in the title.
What Is the OIMIS Smart Stainless Steel Air Fryer Oven?
The OIMIS Smart Air Fryer Oven is a 21-in-1 versatile countertop convection oven with a capacity of 30 liters (32 quarts) and a stainless-steel interior and exterior. This combo oven combines the functions of an air fryer, toaster oven, rotisserie, dehydrator, and pizza oven in one unit. OIMIS is the best large-capacity air fryer oven, having 360° rapid hot air circulation and six heating elements, which helps to cook every dish crispy and juicy evenly with little to no added oil. As I told you, the OIMIS 30L air fryer toaster oven has 6 heating elements; furthermore, there are 4 heating plates at the top and 2 heating plates for the bottom for grilling. It also has a high-speed fan for air frying, and its interior is designed in a diamond shape, which enhances its heat capacity and uniform reflection, and this also decreases cooking time.
OIMIS 21-in-1 air fryer toaster oven combo has cooking functions like Air Fry, Bake, Toast, Roast, Broil, Rotisserie, Dehydrate, Proof (fermentation), Reheat, Warm, and Defrost, Snacks, Bacon, etc. All these functions are easily accessible using this oven. This combo oven also has a hot and cold air system. The hot air system removes the heat, and the cold air system is used to cool down the oven.
OIMIS air fryer oven combo also has an auto shutoff, which acts as overheating protection. Its door glass is removable. Easy for cleaning purposes. OIMIS stainless steel air fryer oven with rotisserie has a digital display and button system. It has many preset functions, a knob to increase or decrease temperature and time, and other buttons like menus, On/Off, Start/Stop, preheat, light, time/temp. OIMIS versatile countertop oven has a dual cooking function, which makes it different from other ovens that I reviewed so far.
You can set dual cooking, like first set the first function like bake and then second function like broil according to your desired time and temperature. In the OIMIS air fryer oven review, I will tell you about its accessories, as it contains one stainless steel oven rack, one stainless steel air fry basket, one teflon non-stick coating baking tray, one stainless steel rotisserie fork, one stainless steel rotisserie basket, one galvanised crumb tray, and one galvanised removeable handle.
Another amazing feature in the OIMIS air fryer oven is its premium door handle. Considering safety measures, its door has three stop positions to open and close. It has a cool-touch handle grip.
It’s built for households that want to replace multiple small appliances like an air fryer, toaster, rotisserie, and dehydrator — with one countertop machine.
Key Features of OIMIS air fryer oven
- 21 Preset Cooking Functions — including Air Fry, Bake, Toast, Roast, Broil, Rotisserie, Dehydrate, Proof (fermentation), Reheat, Warm, and Defrost.
- 30L / 32QT Extra-Large Capacity — fits a 13″ pizza, a whole rotisserie chicken (up to roughly 7–13 lbs depending on the model version), 4–6 slices of toast, 6 bagels, 21 chicken wings or a full cake.
- Patented Dual Duct System — separate hot and cold air ducts cook food 40–50% faster while keeping the exterior of the oven cooler and safer to touch.
- 360° Air Convection Technology — six heating elements circulate hot air for even cooking and up to 85% less fat than deep frying.
- Dual Cook Function — you can make two different cooking presets in sequence (e.g., Air Fry then Warm) without babysitting the oven.
- Stainless Steel Body with Double Tempered Glass Door — durable exterior, easy-view window to monitor food while it cooks.
- Low-Temperature Proof Setting — some versions go as low as 30°C (86°F), useful for yogurt-making and dough proofing.
- Rotisserie Kit + Accessories — typically ships with a rotisserie fork/spit, baking trays, wire rack, dehydrating oven racks, crumb tray, and a recipe cookbook.
- 1800W Power — heats up quickly and maintains consistent internal temperature via a PID chip and NTC sensor.
Who Should Buy the OIMIS 30L Air Fryer Oven?
• Families of 4–6 who have a large family and who want to cook full meals — a whole chicken, a tray of vegetables, or a family-size pizza — in one appliance using its low-oil air frying technology.
• Home cooks replacing multiple appliances, since it covers air frying, toasting, baking, roasting, and dehydrating. It is best for those who want an all-in-one kitchen appliance.
• People trying to eat healthier, it is the best countertop oven in 2026 for healthy eaters, for quick meals, for budget-friendly people, all thanks to the low-oil air frying technology.
• Bakers and fermenters — a best air fryer oven for those who want a low-temperature proofing setting for bread and yogurt. OIMIS suits best in cold areas, where people have difficulty in proofing.
• Anyone with limited kitchen counter or cabinet space looking to consolidate several small appliances into one.
It’s less ideal for single-person households or small kitchens, since the 30L unit is physically large and heavier than compact air fryers — a smaller OIMIS model (like the 17QT) may be a better fit there.
Specifications of OIMIS Oven
| Spec | Detail |
| Capacity | 30L / 32QT |
| Power | 1800W, 120V |
| Cooking Functions | 21 presets |
| Interior Dimensions | ~14.2–14.7″ x 13.5–13.7″ x 9.25–9.4″ |
| Material | Stainless steel exterior, double tempered glass door |
| Heating Elements | 6 (top and bottom) |
| Temperature Range | Approx. 90°F–450°F (varies slightly by version) |
| Special Tech | Patented dual duct system, 360° convection, PID + NTC temperature control |
| Accessories | Rotisserie fork/spit, baking pan, wire rack, dehydrating racks, crumb tray, cookbook |
| Certification | cETL certified |
| Warranty | Typically, a 1-year manufacturer warranty |
OIMIS Air Fryer Oven Price
The OIMIS Smart Stainless Steel Air Fryer Oven 30L typically retails in the $120–$180 USD range. But there are many other factors that vary its pricing, like retailer, color/finish, accessory bundle, and ongoing promotions or coupons. OIMIS oven price also depends on the area, currency, and shop or online platform, etc. Amazon and Walmart listings frequently include on-site coupons or lightning deals that bring the price down from the list price, so it’s worth comparing current listings before purchasing. Amazon also gives discounts like Black Friday, New Year, summer holidays, etc.
Where to Buy OIMIS Oven?
- Amazon — the widest selection of OIMIS oven versions (30L/32QT stainless steel, black, and other color variants), often with the most customer reviews. Amazon itself is a trustworthy platform to buy anything.
- Walmart.com — carries the Smart Stainless Steel 32QT version with free shipping options for Walmart+ members.
- OIMIS’s official storefronts on Amazon and other marketplaces — useful for warranty support directly from the manufacturer and for customer care or any product issue it is easy to contact them.
- Other online marketplaces (e.g., SHEIN) occasionally list the product as well but might be costly or may not be the same product you want.
Always confirm you’re buying from an authorized OIMIS storefront or a reputable retailer to ensure warranty coverage applies.
Cleaning and Maintenance
To keep the OIMIS oven in good condition is straightforward if you follow a few manufacturer-recommended steps; the same rule applies to other kitchen appliances:
- Unplug and cool down first. Always disconnect power and let the oven cool completely before cleaning; otherwise, it may cause serious effects. Do not rush to clean the oven after using it when it is hot.
2. Wipe the interior. Take a soft cloth, soak it with water, and then with neutral detergent. After removing stains, always clean the oven with clear water using a clean cloth and let it dry completely. Avoid harsh scrubbers or sponges because they can make sharp lines on the oven and its glass.
3. Rinse detergent residue with clean water. It is necessary to clean leftover detergent as it can corrode interior surfaces over time.
4. Remove and hand-wash accessories. Take out all removable accessories like trays, racks, rotisserie fork, basket, and soak them in warm, soapy water. It helps to remove any coking residue easily. Then wash with clear water and let them dry completely.
5. Cleaning with Natural ingredients: If you see stuck-on grease or scorched spots, then use natural ingredients like vinegar-water or diluted lemon solution — add a little salt for extra cleaning power. There is a tip for you: wiping vinegar water on a still-warm interior can produce a sharp smell, so wait until it’s fully cooled.
6. Dry all parts completely. It is necessary to dry all accessories completely before reassembling and plugging the oven back in; otherwise, it can cause electric shock. A tip that I do every time: take a clean dry cloth and go through all oven accessories with this to remove any drop of water, just as a safety precaution.
7. Clean after every use involving fatty foods. Leftover grease can carbonize and, in rare cases, create a fire risk during the next cooking session. A simple and easy step after every use to make it less messy for deep cleaning. This tip will increase the life of OIMIS Smart Stainless Steel Air Fryer Oven.
8. Cleaning the Glass Door: The best thing about the OIMIS Smart Stainless Steel air fryer oven is that you can remove its glass window. For safety purposes, use suction pumps, then remove the screw and take the glass out. Wash it with neutral detergent and place it back after cleaning and drying with great care. A clear window helps you monitor the food.
Recipes You Can Cook in the OIMIS Smart Stainless Steel Air Fryer Oven
OIMIS Smart Stainless Steel oven handles a wide range of dishes:
• Air-Fried Chicken Wings — toss in oil and seasoning, use the Air Fry preset for crispy wings with a fraction of the oil of deep frying.
• Whole Rotisserie Chicken — season, truss, and mount on the rotisserie spit; the Rotisserie preset handles even browning on all sides.
• 13″ Homemade Pizza — place on the included tray or directly on the rack for a crisp crust using the Pizza preset.
• Roasted Root Vegetables — carrots, potatoes, and beets roast evenly thanks to the 360° convection airflow.
• Dehydrated Fruit and Jerky — use the Dehydrate preset at low temperatures for homemade snacks.
• Toast and Bagels — the Toast preset fits 4–6 slices at once for family breakfasts.
• Baked Goods — cakes, cookies, and muffins bake evenly using the Bake preset.
• Homemade Yogurt or Proofed Dough — the low-temperature Proof setting (as low as ~30°C on some versions) supports fermentation and bread-making.
• Reheated Leftovers — the Reheat preset restores crispiness to fried or baked leftovers better than a microwave.
The included cookbook typically provides 50+ recipes with suggested times and temperatures for each preset. So, make recipes using this cookbook in the OIMIS Smart Stainless Steel Air Fryer Oven.
Recipes I cook in the OIMIS air fryer oven
Recipe that I cook in OIMIS Smart Stainless Steel Air Fryer Oven is Crispy Chicken Wings. This recipe is my personal favorite and my family love this so much. I’ll tell you the whole recipe with the cooking time and temperature.
Use the ingredients of your choice according to the quantity, or do the same as I always do. Take 2 pounds of chicken wings, 1 tablespoon olive oil, 1 teaspoon baking powder, 1 teaspoon salt, 1 teaspoon garlic powder, 1 teaspoon smoked paprika, and 0.5 teaspoon black pepper. Take a bowl, add the chicken, then marinate the wings with these spices. Then let it rest for 2-3 hours.
First, preheat the OIMIS oven on the Air Fry preset to 400°F. Take your baking tray, and put marinated chicken wings in it.
Then place the chicken wings in the oven and set the temperature at 400°F for 25 minutes. Flip the wings in between and cook until golden brown from outside. After the chicken wings are ready, let them rest for 2-3 minutes and then serve with your favorite sauce.
OIMIS Smart Stainless Steel Air Fryer Oven is the best oven in 2026; its heat-circulating technology makes food crispier and juicier. Its dual cooking system also saves time.
Troubleshooting of OIMIS Smart Air Fryer Oven
| Problem | Likely Cause | Solution |
| Won’t turn on / display stays dark | If this happens, it means the power cord is not fully plugged in, a faulty outlet, the unit is not seated correctly, or the oven switch got damaged. | Solution is simple: make sure the plug is fully inserted, test a different outlet, confirm the appliance is properly assembled before powering on, and fix it if something is wrong. |
| E001 error code | This error means the temperature sensor is open-circuit. | Unplug the oven and let the oven cool for at least 30 minutes, then restart. If it is not fixed, contact OIMIS customer support. |
| “02” error, display won’t come on | This means an internal component fault. | This is a technical problem, and you can’t fix it, so contact OIMIS customer service for a replacement part or to fix it. |
| Oven runs but won’t heat / undercooked food | This means the heating element is not working. | Simply check whether the heating element glows red a few seconds after starting; if it doesn’t start heating, contact customer support or visit any repair shop. |
| Buttons unresponsive except ON/OFF | This means a stuck button or control panel fault. | Simply press all buttons firmly to check if they are working properly; if not, contact customer support for a replacement panel if warranty is valid. |
| Oven changes function on its own mid-cook | This means a dirty or malfunctioning touchscreen. | You have to wipe the touch panel to clean and then restart; if it didn’t fix it, contact customer support for help. |
| Burning smell or smoke during use | This means food residue or foreign material inside the oven. | Unplug oven immediately, check and remove any food residue or foreign matter inside, then clean properly before next use. |
| Smoke/steam leaking from the door | This means the door is not closed tightly, or debris is stuck on the door seal. | Clean the door properly and the gasket area, then close the door tightly; if leakage continues, check for a warped seal. |
| Chicken/meat/ food burnt outside, raw inside | This means the temperature is set too high or the portion too large, or food placed at wrong rack. | Lower the cooking temperature, extend cook time, or cut food into smaller pieces for even cooking and place at the correct rack. |
Final Thoughts
The OIMIS Smart Stainless Steel Air Fryer Oven is built for people who want one large countertop appliance to replace several — an air fryer, toaster, rotisserie, and dehydrator all in one stainless steel unit. Its dual duct system and 21 presets make it versatile enough for everyday cooking and special occasions like a full rotisserie chicken or a family pizza night. It’s a great fit for families and home cooks with counter space to spare; those with smaller kitchens or living alone may prefer a more compact OIMIS model. For more detail about air fryer oven toasters visit my site.
Frequently Asked Questions
- What does 30L or 32QT mean for the OIMIS air fryer oven?
30 liters (about 32 quarts) refers to the interior cooking capacity — large enough to fit a 13-inch pizza, a whole rotisserie chicken, or 4–6 slices of toast at once.
2. How many cooking functions does the OIMIS 30L oven have?
It has 21 preset cooking functions, including Air Fry, Bake, Roast, Broil, Toast, Rotisserie, Dehydrate, Proof, Reheat, Warm, and Defrost.
3. Is the OIMIS Smart Stainless Steel Air Fryer Oven good for a large family?
Yes. Its 30L/32QT capacity is designed for families of 4–6, easily fitting a whole chicken, a large pizza, or trays of vegetables in a single batch.
4. How do I clean the OIMIS Smart Stainless Steel Air Fryer Oven?
Unplug it and let it cool completely; wipe the interior with a soft cloth and neutral detergent, rinse off residue, hand-wash removable accessories, and avoid steel brushes or corrosive cleaners.
5. Where can I buy the OIMIS Smart Stainless Steel Air Fryer Oven 30L?
It’s available on Amazon, Walmart.com, and other online marketplaces. Buying from an authorized OIMIS storefront helps ensure warranty coverage.
6. How much does the OIMIS 30L air fryer oven cost?
Typical pricing falls between $120–$180 USD, depending on the retailer, color option, and any active promotions or coupons.
7. Does the OIMIS Smart Stainless Steel Air Fryer Oven come with accessories?
Most versions include a rotisserie fork/spit, baking pan, wire rack, dehydrating racks, a crumb tray, and a recipe cookbook.
