COSORI CCO-R252-SUS: 11-in-1 Ceramic Air Fryer Toaster Oven Combo for Easy Cooking and Cleanup

Update on March 10, 2025, 4:41 a.m.

For centuries, the hearth was the heart of the home, a place of warmth, gathering, and, of course, cooking. The evolution of cooking technology has been a journey driven by our desire for convenience, efficiency, and healthier meals. From the open fire to the cast-iron stove, and then to the gas and electric ovens, each step has brought us closer to a more seamless culinary experience. Today, we stand at the cusp of another revolution, with multifunctional appliances like the COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer Toaster Oven Combo leading the charge.

These modern marvels are not simply ovens; they’re versatile kitchen powerhouses designed to meet the demands of busy lifestyles and health-conscious consumers. They combine the functions of multiple appliances, saving space, time, and energy, while also opening up new possibilities for culinary creativity.

 COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer

The Science of Convection: Understanding Heat Transfer in Cooking

Before we delve into the specifics of the COSORI CCO-R252-SUS, let’s take a moment to understand the fundamental science behind convection cooking, a principle at the heart of many of its functions.

Heat transfer, in the context of cooking, occurs through three primary mechanisms: conduction, convection, and radiation.

  • Conduction is the transfer of heat through direct contact. Think of a pan heating up on a stovetop.
  • Radiation is the transfer of heat through electromagnetic waves. This is how a broiler element cooks food from above.
  • Convection, however, is the transfer of heat through the movement of fluids (liquids or gases). In a convection oven, a fan circulates heated air around the food, creating a more even and efficient cooking environment.

This circulation of hot air is what allows convection ovens to cook food faster and more evenly than traditional ovens. It also plays a crucial role in the air frying process.
 COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer

Air Frying Explained: Debunking Myths and Highlighting Benefits

Air frying has taken the culinary world by storm, and for good reason. But let’s clear up some common misconceptions. Air frying doesn’t actually “fry” food in the traditional sense. Instead, it uses the principles of convection, as we just discussed, to create a similar crispy texture with significantly less oil.

Imagine a whirlwind of superheated air, rapidly circulating around your food. This intense heat, combined with the movement of the air, removes moisture from the food’s surface, creating a crispy, golden-brown crust that mimics the effect of deep frying. The result? Deliciously “fried” food with up to 85% less fat than traditional frying methods.

The health benefits are clear, but the advantages don’t stop there. Air frying is also faster and more energy-efficient than conventional oven baking, and it reduces the risk of splattering hot oil, making it a safer option as well.

Ceramic Advantage: Exploring the Science of Non-Stick, Easy-Clean Surfaces

The COSORI CCO-R252-SUS isn’t just about air frying; it’s also about making the entire cooking process easier and more enjoyable. One of the key features that contributes to this is its ceramic-coated interior.

Ceramic coatings are renowned for their exceptional heat conductivity, durability, and non-stick properties. But what makes them so effective?

  • Thermal Conductivity: Ceramic materials are excellent conductors of heat. This means that the oven heats up quickly and distributes heat evenly throughout the cooking chamber, ensuring consistent results.
  • Non-Stick Properties: The smooth, non-porous surface of ceramic prevents food from sticking, making cleanup a breeze. This non-stick quality also reduces the need for excessive oil or butter during cooking.
  • Durability: Ceramic coatings are highly resistant to scratches, abrasions, and high temperatures, ensuring long-lasting performance.

Feature Deep Dive

Let’s explore the impressive array of features that make the COSORI CCO-R252-SUS a standout appliance.
 COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer

11-in-1 Functionality: A Versatile Kitchen Powerhouse

The COSORI CCO-R252-SUS truly lives up to its “11-in-1” designation. It’s not just an air fryer or a toaster oven; it’s a culinary Swiss Army knife. The eleven preset functions include:

  • Toast: Achieve perfectly browned toast, with settings for different shades.
  • Bagel: Specifically designed to toast bagels to perfection – crispy on the outside, chewy on the inside.
  • Pizza: Bake delicious pizzas with a crispy crust.
  • Air Fry: Enjoy healthier “fried” foods with minimal oil.
  • Air Bake: Combine the speed of air frying with the even baking of convection.
  • Air Roast: Roast meats and vegetables to tender perfection.
  • Air Sous Vide: Maintain precise temperatures for extended periods, ideal for slow cooking and tenderizing.
  • Proof: Create the perfect environment for rising dough.
  • Broil: Quickly brown the tops of dishes or cook thin cuts of meat.
  • Dehydrate: Make your own dried fruits, vegetables, and jerky.
  • Reheat: Warm up leftovers without drying them out.

This versatility eliminates the need for multiple appliances cluttering your countertop, saving you space and simplifying your cooking process.

Innovative Burner Function: Bringing Stovetop Versatility to Your Oven

One of the most unique features of the COSORI CCO-R252-SUS is its innovative burner function. This allows you to use the top heating element as a makeshift stovetop, perfect for frying eggs, sautéing vegetables, or making sauces. Imagine the convenience of being able to prepare an entire meal – from toasting the bread to frying the eggs – all within one appliance! This function adds a level of versatility rarely seen in countertop ovens.

Spacious Interior: Cooking for a Crowd Made Easy

With a generous 26-quart capacity, the COSORI CCO-R252-SUS is designed to handle everything from a single serving to a feast for the whole family. You can easily fit a 12-inch pizza, a 7-pound chicken, or nine slices of toast. This makes it an ideal choice for both everyday meals and entertaining.
 COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer

Precision Heating: Three Heating Elements for Even Cooking

The COSORI CCO-R252-SUS utilizes three strategically placed heating elements – top, bottom, and back – to ensure even heat distribution throughout the cooking chamber. This eliminates hot spots and ensures that your food is cooked consistently, regardless of its position in the oven. The combination of these heating elements and the powerful convection fan creates an optimal cooking environment for a wide range of dishes.

Easy Cleanup with the Flat-Sealed Heating Elements

Cleaning up after cooking can often be a chore, but the COSORI CCO-R252-SUS is designed with ease of cleaning in mind. The flat-sealed heating elements prevent food crumbs and splatters from accumulating in hard-to-reach areas, making wiping down the interior a simple task. Combined with the non-stick ceramic coating, cleaning becomes significantly less time-consuming.

 COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer

Air Sous Vide: Precision Temperature Control for Perfect Results

The Air Sous Vide function deserves special attention. Traditional sous vide cooking involves immersing vacuum-sealed food in a water bath held at a precise temperature. This technique ensures perfectly cooked food, from edge to edge, as the water bath provides a consistent and gentle heat. The COSORI CCO-R252-SUS’s “Air Sous Vide” function cleverly mimics this process, but without the water bath.

Instead of water, it uses precisely controlled, low-temperature air circulation to achieve similar results. While it might not reach the absolute precision of true water-bath sous vide (which is often measured in fractions of a degree), it offers a remarkably close approximation, making the benefits of sous vide cooking – incredibly tender meats, perfectly cooked vegetables, and enhanced flavors – accessible in a much more convenient and user-friendly way. Think of it as “sous vide-style” cooking, bringing the benefits of this precise technique to a wider audience. The key here is the stability of the temperature, holding it steady for long periods, which is crucial for the slow, even cooking that defines sous vide.

Turning off the display

Based on provided product descriptions, COSORI also understand user’s demand for power saving. You can turn off the display, and that feature has been design to meet your concern.

  1. Press and hold the Light button for 3 seconds to turn off the display (can press any button to active the display (except >ll )

  2. If the toaster oven is inactive for 45 seconds, the display will turn off automatically. Use any control to wake up the toaster oven (except >ll )

  3. As with most appliances, it is a good habit to unplug the unit for energy-saving purposes and as a safety precaution

The COSORI CCO-R252-SUS vs. Traditional Ovens: A Comparative Analysis

Let’s compare the COSORI CCO-R252-SUS to a traditional oven across several key factors:

Feature COSORI CCO-R252-SUS Traditional Oven
Versatility 11-in-1 functionality Limited functions (typically baking and broiling)
Speed Faster cooking due to convection and air frying Slower cooking times
Energy Efficiency More energy-efficient due to faster cooking times Less energy-efficient
Evenness of Cooking Excellent, due to three heating elements and convection Can have hot spots
Ease of Cleaning Very easy, due to ceramic coating and sealed elements More difficult to clean
Healthy Cooking Air frying option reduces oil usage No built-in healthy cooking option
Space Efficiency Consolidates multiple appliances into one unit Requires separate appliances for different tasks

While a traditional oven might still be preferred for certain large-scale baking tasks, the COSORI CCO-R252-SUS offers a compelling alternative for everyday cooking, providing greater versatility, speed, and convenience.

Safety First: Essential Tips for Using Your COSORI Oven

As with any kitchen appliance, safety should always be a top priority. Here are some essential tips for using your COSORI CCO-R252-SUS safely:

  • Read the manual: Familiarize yourself with all instructions and safety precautions before using the oven.
  • Use oven mitts: Always use oven mitts or pot holders when handling hot dishes or accessories.
  • Keep away from children: Ensure the oven is out of reach of children, especially when in use.
  • Do not overcrowd: Avoid overcrowding the oven, as this can restrict airflow and affect cooking performance.
  • Unplug when not in use: Unplug the oven when not in use and before cleaning.
  • Use appropriate cookware: Use cookware that is suitable for high temperatures and the specific cooking function you are using.
  • Proper ventilation: Make sure that the area around your air fryer oven is clear.There should be at least 5 in/13 cm of space around all sides of the air fryer oven.
  • Never immerse in water: Never immerse the oven or its cord in water or any other liquid.
     COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer

Simple recipes ideas

Unlocking Culinary Creativity with COSORI’s Multi-functional Oven.With its intuitive design and diverse capabilities, this oven isn’t just an appliance, it’s your culinary partner. Imagine easily achieving crispy fries without the guilt of deep-frying, or baking a pizza with a perfectly golden crust. The COSORI oven makes all this possible, and more.

  1. Crispy Air-Fried Chicken Wings:

    • Function: Air Fry
    • Ingredients: Chicken wings, your favorite seasoning.
    • Instructions: Toss wings with seasoning, air fry at 400°F (200°C) for 20-25 minutes, flipping halfway. Enjoy crispy wings with significantly less oil!
    • Benefit: Healthier alternative to deep-fried wings.
  2. Perfectly Toasted Bagels:

    • Function: Bagel
    • Instructions: Place bagel halves in the oven, select the Bagel function, and adjust the toasting level.
    • Benefit: Get that ideal bagel texture – crispy on the cut side, warm and soft on the other.
  3. Roasted Vegetables with Herbs:

    • Function: Air Roast
    • Ingredients: Your favorite vegetables (broccoli, carrots, peppers, etc.), olive oil, herbs, salt, pepper.
    • Instructions: Toss vegetables with oil, herbs, and seasonings. Roast at 375°F (190°C) until tender and slightly caramelized.
    • Benefit: Enhanced flavor and texture compared to traditional roasting.
  4. Dehydrated Fruit Snacks:

    • Function: Dehydrate
    • Ingredients: Sliced fruits (apples, bananas, strawberries, etc.).
    • Instructions: Arrange fruit slices on the dehydrating rack, set the temperature to 135°F (57°C), and dehydrate for 4-8 hours, depending on the fruit.
    • Benefit: Healthy, homemade snacks with no added sugar or preservatives.

Conclusion: The Future of Home Cooking is Here

The COSORI CCO-R252-SUS 11-in-1 26-Quart Ceramic Air Fryer Toaster Oven Combo represents a significant step forward in home cooking technology. It combines versatility, speed, convenience, and healthy cooking options in a single, user-friendly appliance. By understanding the science behind its features – convection, air frying, and the benefits of ceramic coating – you can unlock its full potential and elevate your culinary creations. It’s more than just an oven; it’s a gateway to a more efficient, enjoyable, and health-conscious way of cooking.