Introduction
Thank you for choosing the COSORI 12L Air Fryer Oven, Model CAF-R121. This appliance is designed to provide a versatile cooking experience, combining the functions of an air fryer and a countertop oven. This manual contains important information regarding the safe use, operation, maintenance, and troubleshooting of your new appliance. Please read all instructions thoroughly before first use and retain this manual for future reference.
Important Safeguards
When using electrical appliances, basic safety precautions should always be followed to reduce the risk of fire, electric shock, and injury. Read all instructions.
- Do not touch hot surfaces. Use handles or knobs.
- To protect against electrical shock, do not immerse cord, plugs, or the appliance in water or other liquid.
- Close supervision is necessary when any appliance is used by or near children.
- Unplug from outlet when not in use and before cleaning. Allow to cool before putting on or taking off parts.
- Do not operate any appliance with a damaged cord or plug, or after the appliance malfunctions or has been damaged in any manner.
- The use of accessory attachments not recommended by the appliance manufacturer may cause injuries.
- Do not use outdoors.
- Do not let cord hang over edge of table or counter, or touch hot surfaces.
- Do not place on or near a hot gas or electric burner, or in a heated oven.
- Extreme caution must be used when moving an appliance containing hot oil or other hot liquids.
- Always attach plug to appliance first, then plug cord into the wall outlet. To disconnect, turn any control to “off”, then remove plug from wall outlet.
- Do not use appliance for other than intended use.
- Oversized foods or metal utensils must not be inserted in a toaster oven as they may create a fire or risk of electric shock.
- A fire may occur if the oven is covered or touching flammable material, including curtains, draperies, walls, and the like, when in operation.
- Do not place any of the following materials in the oven: paper, cardboard, plastic, and the like.
- Do not store any materials, other than manufacturer’s recommended accessories, in this oven when not in use.
- Do not place any of the following materials in the oven: paper, cardboard, plastic, and the like.
- Do not cover the crumb tray or any part of the oven with metal foil. This will cause overheating of the oven.
Product Overview
Components and Features
The COSORI 12L Air Fryer Oven is designed for convenience and versatility. It features a compact design with a generous 12-liter capacity, suitable for various cooking needs.

Image: The COSORI 12L Air Fryer Oven shown with its various accessories, including the rotisserie spit, mesh baskets, and drip tray.
Key Features:
- 11 Preset Functions: Air Fry, Roast, Bake, Pizza, Toast, Reheat, Warm, Dry, Proof, Broil, and Keep Warm.
- 12-Liter Capacity: Accommodates a 1.8 kg whole chicken or 900g of fries, ideal for families.
- Dual Heating Elements (1800W): Upper and lower heating elements with a two-speed fan for even cooking and crispy results.
- Viewing Window and Interior Light: Monitor cooking progress without opening the door.
- Safety Design: Double-glazed door and stainless steel interior for enhanced safety and durability.

Image: A visual representation of the 12-liter capacity, showing a whole chicken, pizza, and fries inside the air fryer oven.
Accessories Included
Your COSORI Air Fryer Oven comes with 7 dishwasher-safe accessories (excluding the drip tray) to enhance your cooking versatility:
- Rotisserie Spit: For roasting whole chickens or other meats.
- Rotisserie Handle: For safe removal of the rotisserie spit.
- Rotisserie Basket: Ideal for fries, nuts, or small vegetables.
- Wire Rack (2): For general cooking, baking, or dehydrating.
- Food Tray: For baking or roasting.
- Drip Tray: Collects oil and crumbs for easy cleaning.

Image: A display of the seven included accessories: rotisserie spit, rotisserie handle, rotisserie basket, two wire racks, food tray, and drip tray.
Setup
Unpacking and Placement
- Remove all packaging materials from the air fryer oven and its accessories.
- Place the appliance on a stable, level, heat-resistant surface, away from walls or other appliances to ensure proper ventilation.
- Ensure there is at least 15 cm (6 inches) of space on all sides of the appliance for adequate airflow.
Before First Use
- Clean the interior of the oven with a damp cloth and mild detergent. Wipe dry.
- Wash all accessories (except the drip tray) with warm, soapy water or in a dishwasher. The drip tray should be hand-washed. Dry thoroughly.
- Perform a test run: Plug in the appliance. Select the 'Air Fry' function, set temperature to 200°C (390°F) and time to 15 minutes. This helps burn off any manufacturing residues and odors. A slight odor or smoke is normal during the first use.
Operating Instructions
Control Panel Overview
The intuitive LED touch screen allows for easy selection of functions and adjustments.

Image: Close-up of the COSORI Air Fryer Oven's digital control panel and the interior viewing window with light.
Preset Functions:
- Air Fry: For crispy foods with minimal oil.
- Roast: Ideal for meats and vegetables.
- Bake: For cakes, cookies, and other baked goods.
- Pizza: Optimized for cooking pizzas.
- Toast: For bread and bagels.
- Reheat: To warm up leftovers.
- Warm: Keeps food at serving temperature.
- Dry (Dehydrate): For drying fruits, vegetables, and jerky.
- Proof: For rising dough.
- Broil: For grilling and browning.

Image: The COSORI Air Fryer Oven displaying different cooking functions like roasting, baking, and air frying, alongside examples of prepared food.
General Operation
- Power On: Plug the appliance into a grounded electrical outlet. The display will illuminate.
- Select Function: Press the desired preset function button on the control panel. The default temperature and time for that function will appear.
- Adjust Settings: Use the temperature and time adjustment buttons to modify the settings as needed.
- Preheat (Optional): For best results, preheat the oven before adding food. Some presets include a preheat step.
- Start Cooking: Press the Start/Pause button to begin cooking.
- Monitor Food: Use the interior light and viewing window to check food progress.
- Finish Cooking: The oven will beep when cooking is complete. Carefully remove food using oven mitts.
Using the Rotisserie Function
- Securely attach the food (e.g., whole chicken) to the rotisserie spit using the forks.
- Insert the rotisserie spit into the designated slots inside the oven.
- Select a suitable cooking function (e.g., Roast) and adjust temperature/time.
- Press the Rotisserie button (if available on your model) to activate rotation.
- Once cooking is complete, use the rotisserie handle to carefully remove the hot spit and food.
Care and Maintenance
Cleaning
- Always unplug the air fryer oven and allow it to cool completely before cleaning.
- Interior: Wipe the interior with a damp cloth and mild soap. For stubborn stains, use a non-abrasive sponge.
- Exterior: Wipe the exterior with a damp cloth. Do not use abrasive cleaners or scourers.
- Accessories: All accessories, except the drip tray, are dishwasher safe. Hand-wash the drip tray with warm, soapy water.
- Ensure all parts are completely dry before storing or next use.

Image: A hand demonstrating the removal of the drip tray from the bottom of the air fryer oven for cleaning.
Storage
Store the cleaned and dried air fryer oven and its accessories in a cool, dry place.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Appliance does not turn on. | Not plugged in; power outlet malfunction. | Ensure the power cord is securely plugged into a working outlet. |
| Food is not cooked evenly. | Overcrowding; incorrect temperature/time. | Do not overcrowd the oven. Ensure food is in a single layer. Adjust temperature or cooking time as needed. Rotate racks if using multiple. |
| White smoke coming from the appliance. | Grease residue; food with high fat content. | Clean the drip tray and interior thoroughly. For high-fat foods, ensure the drip tray is clean and consider using less oil. |
| Appliance emits a burning smell. | Food residue; first use odor. | Clean the interior and accessories. A slight odor is normal during initial use. If it persists, contact customer support. |
| Rotisserie spit not rotating. | Improper installation; food too heavy. | Ensure the rotisserie spit is correctly installed in its slots. Do not overload with food. |
Specifications
| Specification | Detail |
|---|---|
| Model Number | CAF-R121 |
| Capacity | 12 Liters |
| Power | 1800 Watts |
| Voltage | 220 Volts (AC) |
| Dimensions (L x W x H) | 35.2 x 37.1 x 32.9 cm |
| Weight | 10 kg |
| Material | Stainless Steel (Interior) |
| Special Feature | Temperature Control, Dual Heating |
Warranty and Customer Support
COSORI provides a 3-year warranty for this product. For any questions, concerns, or issues regarding your COSORI 12L Air Fryer Oven, please contact our customer support team. You can find contact information on the official COSORI website or through your purchase platform. Please have your model number (CAF-R121) and proof of purchase ready when contacting support.





