1. Introduction
The Oster Flex Air Fryer Oven is a versatile kitchen appliance designed to simplify meal preparation. It features dual cooking zones and multiple functions, including air frying, baking, grilling, reheating, roasting, and turbo crisping. This manual provides essential information for the safe and efficient operation of your appliance.
2. Important Safety Information
Please read all instructions carefully before using this appliance. Failure to follow these instructions may result in electric shock, fire, or serious injury.
- Always place the appliance on a stable, heat-resistant surface, away from walls and other appliances, to allow for proper air circulation.
- Do not immerse the cord, plug, or any part of the appliance in water or other liquids.
- 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.
- Do not use attachments not recommended by the appliance manufacturer, as this may cause injuries.
- Extreme caution must be used when moving an appliance containing hot oil or other hot liquids.
- Do not use the appliance for other than intended household use.
3. Product Components and Accessories
The Oster Flex Air Fryer Oven comes with several accessories to enhance your cooking experience. Familiarize yourself with each component.

The Oster 11-Quart Flex Air Fryer Oven, showcasing its dual cooking zones with food inside.

Illustration of the dual 5.5-quart cooking zones, allowing simultaneous cooking in both compartments.

All included accessories: two baskets, two mesh trays, two crumb trays, one large roasting tray, and a basket handle.
Included Accessories:
- 2 x 5.5-Quart Frying Baskets
- 2 x Mesh Trays
- 2 x Crumb Trays
- 1 x Large Roasting Tray
- 1 x Basket Handle
- Integrated Storage Drawer for accessories
4. Setup
4.1 Unpacking
Carefully remove all packaging materials from the air fryer oven. Retain packaging for future storage or transport if needed.
4.2 Initial Cleaning
Before first use, wash all removable accessories (baskets, trays, handle) in warm, soapy water. Wipe the interior and exterior of the main unit with a damp cloth. Ensure all parts are completely dry before assembly and use.
4.3 Placement
Place the air fryer oven on a flat, stable, heat-resistant surface. Ensure there is adequate space (at least 6 inches) around all sides of the appliance for proper ventilation during operation.
5. Operating Instructions
The Oster Flex Air Fryer Oven offers intuitive touch controls and multiple cooking functions.
5.1 Control Panel Overview
The digital control panel allows you to select cooking functions, adjust time and temperature, and manage the dual zones. The glass window allows for easy monitoring of food during cooking.

Close-up view of the control panel, highlighting the six available cooking functions.
5.2 Dual Zone Features: Match and Sync Functions
The appliance features two independent 5.5-quart cooking zones, allowing you to cook different foods simultaneously at different temperatures and times.
- Match Function: Cook food in both zones at the same time and temperature.
- Sync Function: Cook two different foods two ways, with both finishing at the same time. The appliance will automatically adjust the cooking time of the zone that finishes first to ensure both are ready together.

Demonstration of the Match and Sync function, showing different foods cooking in each zone.
5.3 Modular Design for Convertible Cooking
The removable partition allows you to convert the dual air fryer ovens into a single 11-quart oven. This is ideal for cooking larger items like a whole chicken.

A hand removing the central partition to convert the dual zones into a single large oven cavity.
5.4 Cooking Functions
Select from six preset cooking functions:
- Air Fry: For crispy results with little to no oil.
- Turbo Crisp: An enhanced air frying mode for extra crispiness.
- Roast: Ideal for meats and vegetables.
- Grill: For achieving grilled textures and flavors.
- Bake: Suitable for cakes, pastries, and other baked goods.
- Reheat: To warm up leftovers efficiently.
6. Cleaning and Maintenance
Regular cleaning ensures optimal performance and extends the life of your appliance.
6.1 Cleaning the Accessories
All included accessories (baskets, mesh trays, crumb trays, large roasting tray, and basket handle) are dishwasher-safe for convenient cleaning. For stubborn residue, soak in warm, soapy water before washing.
6.2 Cleaning the Main Unit
Wipe the exterior of the air fryer oven with a damp cloth. For the interior, use a soft, damp cloth and mild detergent. Do not use abrasive cleaners or scouring pads, as they can damage the nonstick coating and finish. Ensure the unit is unplugged and completely cool before cleaning.
6.3 Storage
The integrated storage drawer keeps accessories organized and easily accessible when not in use.
7. Troubleshooting
If you encounter issues with your Oster Flex Air Fryer Oven, refer to the following common solutions:
- Appliance not turning on: Ensure the power cord is securely plugged into a functioning electrical outlet. Check your household circuit breaker.
- Food not cooking evenly: Ensure not to overcrowd the baskets. Shake or flip food halfway through cooking. For larger items, consider using the 11-quart single zone configuration.
- White smoke from appliance: This may occur if cooking fatty foods or if there is residual grease from previous use. Ensure baskets and trays are clean.
- Appliance emits unusual noise: This could be due to loose parts or foreign objects. Unplug the unit and inspect. If the noise persists, contact customer support.
For issues not covered here, please refer to the manufacturer's official support channels.
8. Specifications
| Feature | Specification |
|---|---|
| Model Name | Oster Flex Due |
| Model Number | 2210103 |
| Capacity | 11 Liters (Dual 5.5 Liters) |
| Product Dimensions | 14.2"D x 15.2"W x 14.5"H |
| Item Weight | 16.66 pounds |
| Color | Silver |
| Material | Metal |
| Output Wattage | 1700 Watts |
| Voltage | 12.55 Volts |
| Control Method | Touch |
| Special Feature | Dual Zone Features, Convertible Design |
| Dishwasher Safe Parts | Yes (Accessories) |
| Nonstick Coating | Yes |
9. Warranty and Support
For warranty information and customer support, please refer to the documentation included with your product or visit the official Oster website. You can also visit the Oster Store on Amazon for additional product information and resources.





