OUNIN Steam Oven 18L (11-in-1) – Air Fryer Oven with Steam Infusion, Dual Cook & Self-Cleaning
Product description
What it is and why people buy it
The OUNIN Steam Oven 18L is a countertop steam oven that aims to cover a lot of jobs in one appliance. It’s built around steam infusion (with “steam lock” freshness) and pairs that with air frying, baking, roasting and more. In everyday terms, it’s for people who want quicker, more reliable results than a basic air fryer, without taking up the space of multiple separate gadgets.
If you’ve ever had air-fried food that leans a bit dry, or veg that comes out less tender than expected, the pitch here is clear: gentle steam helps keep moisture in while you cook. That matters most for items like roast chicken that you want juicy, or vegetables that you don’t want to turn tough. It also looks geared towards lighter cooking routines, since the description positions this as low-fat with crisp-tender results.
That said, it’s not magic. Steam can be a divisive approach if you prefer very bold, intensely dry “fried” textures all the way through—so it’s worth thinking about what you cook most often before you buy.
What stands out (and what to take with a pinch of salt)

The headline strength is the combination: steam infusion plus 360° even heating, with a touchscreen control panel and a clear viewing window. You’re meant to be able to choose a mode with one tap and monitor progress without opening the door repeatedly (which can help keep temperature steadier).
Where it gets interesting is the “11-in-1” angle. The oven is described as a multi-cooker countertop oven with 11 versatile functions, including 5 dedicated steam settings, plus air frying, baking, roasting, steaming and dehydrating. On paper, that’s the sort of range that can replace several single-use appliances for small kitchens.
A quick, practical use example
Imagine you’re doing a weeknight meal: you set the oven for a steam-related setting, cook vegetables alongside a main, then finish with an air-fry style mode to bring a bit more crisp. The viewing window helps you judge timing without constant door opening.


Keep in mind that the description doesn’t give exact temperature ranges, programme times, or how the steam settings perform with specific dishes. So if you’re very particular about repeatable results (or you’re expecting restaurant-level consistency straight away), you may need a little experimentation with your own recipes.

Key functions you’ll likely use
The appeal of this OUNIN steam oven is that it’s designed to handle several cooking styles rather than just one. Based on the provided information, you can expect it to cover:
- Steam-focused cooking with “steam lock-fresh technology” and dedicated steam settings
- Air frying for crispier, lower-oil style meals
- Baking and roasting for more traditional oven jobs
- Dehydrating for drying tasks
- Steaming as a separate function
It also includes enhanced smart preheating (helping with smoother start times) and a self-cleaning cycle to reduce the maintenance hassle.
User experience: controls, visibility and day-to-day convenience

This oven uses a responsive, clear touchscreen panel so you can select your cooking mode quickly. There’s also a light-tinted viewing window, which is a small thing until you actually cook with it—less door opening can mean steadier heat and fewer “oops, it cooled down” moments.
The space-saving angle is also part of the design brief: a modern, compact countertop form with an 18-litre capacity, aimed at smaller UK homes such as flats, studios or busy family kitchens. It’s the sort of unit you’d consider if you want oven-like versatility without dedicating a huge footprint.
One more practical detail: the package is described as including a baking tray, wire rack, air fry basket, oven mitt, user manual and recipe book. That’s helpful because multi-function cookers sometimes feel like you’re learning everything from scratch.


Tech summary (the essentials)
The product information highlights these core technical themes.

- Type: Steam oven / air fryer oven with steam infusion
- Capacity: 18L
- Functions: 11 cooking functions including 5 dedicated steam settings
- Heating: 360° even heating
- Materials: Stainless steel inner
- Cleaning: self-cleaning cycle
- Controls: touchscreen panel with viewing window
There’s also a stainless steel inner and a “space-saving design”, which fits with the intended countertop use. Still, if you care about specific power draw, exact wattage, or detailed programme steps, those aren’t included in the information provided here.
Should you buy it? (Buying verdict)
It makes sense if you want one countertop oven to do multiple jobs—steam cooking plus air frying, baking and roasting—especially if you’re cooking for a household and value moist results (or less dry outcomes than some conventional air fryer setups). It’s also a strong fit if your priority is saving space while still having a range of modes, and if you like being able to see food through the window without constantly opening the door.
You may want to skip it if you mainly make dishes that require a very dry, heavily fried texture, because steam-based cooking can change the feel of the final result. It might also be less suitable if you need a lot of precise temperature/program control details before buying—those specifics aren’t present in the information here, so you’d have to rely on the included manual and your own testing.

Mini FAQ
Is this oven mainly for steam cooking or air frying?


It’s positioned as a steam oven with steam infusion, but it also includes air frying, baking and roasting among its 11 functions, so it’s more “multi-style” than purely steam-first.
What does “steam lock-fresh technology” mean in practice?
The description says it uses gentle steam to lock in natural moisture, nutrients and flavour. Practically, the aim is to reduce dryness and keep food more succulent.

Does it include self-cleaning?
Yes—there’s a self-cleaning cycle mentioned, which is designed to make upkeep easier.
Is it suitable for small kitchens?
The write-up explicitly focuses on compact, space-saving countertop use with an 18-litre capacity, aimed at UK homes like flats and studios.
Is it a replacement for several appliances?
That’s the intent: it’s described as designed to replace multiple single-use appliances by covering steam, air frying, baking, roasting and more in one unit.
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