COSORI CTO-R251 Smart 12-in-1 Air Fryer Toaster Oven
Package Contents
- 1 x Smart Air Fryer Toaster Oven
- 1 x Wire Rack
- 1 x Food Tray
- 1 x Fry Basket
- 1 x Recipe Book
- 1 x User Manual
- 1 x Quick Reference Guide
Specifications
| Model | CTO-R251S |
| Power Supply | AC 120V, 60Hz |
| Rated Power | 1800W |
| Capacity | 26 qt / 25 L, 6-Slice Toaster, 12” Pizza |
| Temperature Range | 80°–450°F / 25°–230°C |
| Time Range | 0–24 hr |
| Weight | 22 lb / 9.98 kg (including accessories) |
| Dimensions | 16.3 x 16.9 x 15.5 in / 41.3 x 42.8 x 39.3 cm |
GETTING TO KNOW YOUR SMART AIR FRYER TOASTER OVEN
- A. Temp/Slices Button
- B. Time/Shade Button
- C. Menu Button
- D. Fan Button
- E. °F/°C Button
- F. Light Button
- Located in a drawer below the door.
- G. Control Knob/Start/Pause/Power
- H. Housing
- I. ED Display
- J. Heating Elements
- K. Door
- L. Handle
- M. Crumb Tray*
- N. Fry Basket
- O. Wire Rack
- P. Food Tray
- Q. Power Cord
DISPLAY
| Cook Time Remaining | Display Format |
| < 1 hour | Minutes: Seconds |
| ≥ 1 hour | Hours: Minutes |
CONTROLS
Control Knob/Start/Pause/Power
- Press the knob to turn on the oven.
- Press and hold TIME/SHADE for 3 seconds to turn off the display, and can press any button to activate the display.
- Press MENU and turn the knob to change the cooking function. The current function will blink on the display.
- Press TEMP/SLICES and turn the knob to change temperature or number of slices. Turn clockwise to increase and counterclockwise to decrease.
- Press TIME/SHADE and turn the knob to change time or toast darkness level. Turn clockwise to increase and counterclockwise to decrease.
- Press the knob to start/pause the cooking function.
- Press and hold knob for 15 seconds to reset cooking functions to default (see Customizing Cooking Functions, page 13).
TIME/SHADE Button
- Press to adjust time or shade of toast.
- Turn the control knob clockwise to increase the setting and counterclockwise to decrease the setting.
- Shade is adjusted from 1 to 7 toast darkness level.
MENU Button
- Press to change the cooking function.
- Turn the control knob to cycle through cooking functions.
- The current function will blink on the display.
°F/°C Button
- Press to switch temperature units between Fahrenheit and Celsius.
Light Button
- Press to turn the interior light on/off.
- The interior light will automatically turn on when you open the door
BEFORE FIRST USE
Setting Up
- Remove all packaging around and inside the oven.
- Place on a stable, level, heat-resistant surface, away from anything that can be damaged by heat.
- Wash all accessories and clean the oven’s interior (see page 28). Dry and place accessories back in oven.
VeSync App Setup
- To download the VeSync app, scan the QR code or search “VeSync” in the Apple App Store® or Google Play Store
- Open the VeSync app. If you already have an account, tap Log In. To create a new account, tap Sign Up
- Note: You must create your own VeSync account to use third-party services and products. These will not work with a guest account. With a VeSync account, you can also allow your family and friends to control your smart air fryer toaster oven
COOKING WITH YOUR SMART AIR FRYER TOASTER OVEN
Note: You can use the VeSync app to control your smart air fryer toaster oven, follow in-app recipes, and more.
CAUTION:
- The outer surface of the oven, including the oven door, is hot during and after use. Temperature may be over 212°F (100°C). Do not touch hot surfaces. Use handle.
- Always use heat-resistant gloves, pads, or oven mitts when handling hot materials, and when placing items in or removing items from the oven
Fry Basket
- When cooking with oil or air frying greasy food such as beef, chicken, or pork, place the fry basket on the food tray (or insert the food tray underneath the fry basket) to prevent oil from dripping on the heating elements. [Figure 1.2]
Using the Trays
- Four trays are included with your oven:
- the wire rack, food tray, fry basket, and crumb tray. The cooking functions require different trays, so make sure to use the correct tray. Follow the recipe instructions or the suggestions given in each function section.
Cooking Functions
- Cooking functions are programmed with an ideal time and temperature for cooking certain foods. For more information on each cooking function, see its individual section, or the Cooking Functions Quick Reference Chart (see page 14)
Customizing Cooking Functions
- When the oven is not cooking or is paused, press MENU and turn the control knob to select the function you want to change.
- Select the settings you want to set as default.
- a. For Toast, press TEMP/SLICES and/or TIME/SHADE, and use the control knob to adjust the number of slices or toast darkness level.
- b. For other functions, press TEMP/SLICES and/or TIME/SHADE, and use the control knob to adjust the time and/or temperature.
- Press the control knob to start the cooking function. The oven will remember the new settings the next time the cooking function is used.
Cooking Functions Quick Reference Chart
| Name | Use | Suggested Accessory & Position | Range |
|
AIR FRY | • Cooks using intense heat and maximized airflow • Cook food such as French fries and chicken wings • Includes preheat |
Fry basket at the top position | • 150°–450°F / 65°–230°C • 1 min–2 hr |
|
BAKE | • Cook food evenly throughout • Bake cakes, muffins, pastries • Includes preheat | Food tray or wire rack at mid position | • 150°–450°F / 65°–230°C • 1 min–2 hr |
|
TOAST |
• Toast or brown bread |
Wire rack at the top position | • Darkness Level 1–7 • Slices 1–6 • Time and temperature are automatic |
|
ROAST | • Cook a variety of meats and poultry • Food will be tender and juicy on the inside and well-roasted on the outside. • Includes preheat |
Food tray at low position |
• 150°–400°F / 65°–205°C • 1 min–2 hr |
|
BROIL | • Cook open-faced sandwiches, thin cuts of meat (such as bacon), poultry, fish, sausages, and vegetables • Brown the tops of casseroles, gratins, and desserts • Includes preheat |
Food tray at top position |
• 150°–450°F / 65°–230°C • 1 min–2 hr |
|
KEEP WARM | • Keep food warm at the recommended temperature to prevent bacterial growth (160°F / 71°C or above) | Food tray or wire rack at low position | • 140°–230°F / 60°–110°C • 1 min–1 hr |
| DEHYDRATE | • Evenly dry out food without cooking • Dry fruit or vegetable chips | Wire rack or fry basket at the top position | • 100°–180°F / 40°–80°C • 30 min–24 hr |
|
PIZZA | • Melt and brown cheese and toppings while crisping crust • Includes preheat | Wire rack at mid position | • 150°–450°F / 65°–230°C • 1 min–2 hr |
|
SLOW COOK | • Simmer food for long periods of time at low temperatures • Cook soup
Note: Usually requires placing cookware on top of tray or rack. |
Food tray or wire rack at low position |
• 150°–250°F / 65°–120°C • 30 min–12 hr |
| REHEAT | • Reheat leftovers | Food tray at mid position | • 150°–400°F / 65°–205°C • 1 min–2 hr |
|
FERMENT | • Precisely hold low temperatures • Proof bread, rolls, pizza, and dough • Make yogurt |
Food tray or wire rack at low position | • 80°–110°F / 25°–45°C • 30 min–12 hr |
Tray Positions
- Each cooking function has a recommended tray position, which a slot that you can slide a tray into (the wire rack, food tray, or fry basket). The standard recommended positions are indicated on the front of the oven [Figure 2.1]. The three positions are Top, Mid, and Low. [Figure 2.2].
Preheating
The following cooking functions automatically include preheat: Air Fry, Bake, Roast, Pizza, Broil, and Slow Cook.
- Press MENU and turn the control knob to select a cooking function that includes preheat.
- Press the control knob to start the cooking function.
- PREHEATING will blink on the display and the oven will begin preheating.
- When preheating is finished, the oven will beep 3 times. The temperature will show on the display.
- Open the oven door and place food inside, then close the oven door to start cooking
Air Fry Function (“AIR FRY”)
- Heating Elements: Upper heating elements cycle on and off.
- Rack Position: Top
- Press MENU and turn the control knob to “AIR FRY”, which will blink on the display.
- Optionally, customize the temperature and time. You can do this anytime during cooking
- a. Press TEMP/SLICES to adjust temperature. Turn the control knob to adjust the temperature between 150°–450°F / 65°–230°C.
- b. Press TIME/SHADE to adjust time. Turn the control knob to adjust the time between 1 min–2 hr.
Broil Function (“BROIL”)
- Heating Elements: Upper heating elements cycle on and off.
- Rack Position: Top
- Press MENU and turn the control knob to “BROIL”, which will blink on the display.
- Optionally, customize the temperature and time. You can do this anytime during cooking
- a. Press TEMP/SLICES to adjust temperature. Turn the control knob to adjust the temperature between 150°–450°F / 65°–230°C.
- b. Press TIME/SHADE to adjust time. Turn the control knob to adjust the time between 1 min–2 hr.
TROUBLESHOOTING
| Problem | Possible Solution |
| The oven will not turn on. | Make sure the oven is plugged in. |
| Food is not completely cooked. | Increase cooking temperature or time. |
|
Food is overcooked or burned. | Decrease cooking temperature or time. |
| Make sure food items are not too large and are not touching the heating elements. | |
| Food is cooked unevenly. | Make sure food items are not too closely packed into a tray, rack, or other container. |
|
White smoke or steam is coming out of the oven. | The oven may produce some white smoke or steam during cooking. This is normal. |
| During first use, dust from the packing process may cause white smoke. This is normal for toaster ovens and many other kitchen appliances. To eliminate any dust, see Test Run (page 11). | |
| Excess oil or fatty foods may produce white smoke. Make sure the inside of the oven is cleaned properly and isn’t greasy. | |
| Dark smoke is coming out of the oven. | Immediately press the control knob to pause cooking and unplug your oven. Food is burning. Wait for smoke to clear before opening the oven door. |
| A thermometer shows that the oven temperature is different from the oven setting. | Commonly used thermometers usually have low sensitivity and take over 10 minutes to measure the correct temperature. This will not affect cooking. |
| Display shows Error Code “E01 ”. | There is an open circuit in the temperature monitor. Contact Customer Support (see page 34). |
| Display shows Error Code “E02 ”. | There is a short circuit in the temperature monitor. Contact Customer Support (see page 34). |
| Display shows Error Code “E04 ”. | The oven has been plugged into an incorrect power source, such as a 220–240V outlet. Unplug the oven. Only use the oven with 120V, 60Hz outlets, such as those in North America. |
VESYNC APP TROUBLESHOOTING
| Problem | Possible Solution |
|
Why isn’t my oven connecting to the VeSync app? | During the setup process, you must be on a secure 2.4GHz Wi-Fi® network. Confirm that the network is working correctly. |
| Make sure the Wi-Fi® password you entered is correct. | |
| Turn on Bluetooth® on your phone (for Android™ users, make sure Location is turned on as well). | |
| Make sure your oven and phone are within 30 ft / 10 m of each other. | |
| Reset the oven by pressing and holding the control knob for 15 seconds, then try connecting again. | |
|
My oven is offline. | Make sure the oven is plugged in. The oven may appear to be offline if it is unplugged, or if the outlet does not have power. |
| Refresh the VeSync menu by swiping down on the screen. | |
| Make sure your router is connected to the internet and your phone’s network connection is working. | |
| Delete the oven from the VeSync app. Swipe left (iOS)® or press and hold (Android), then tap Delete. Reconfigure your oven with the VeSync app. |
For more manuals by Cosori visit ManualsLibraryy
COSORI CTO-R251 Smart 12-in-1 Air Fryer Toaster Oven-FAQs
How do I turn off the Cosori air fryer toaster oven?
The unit does not have a dedicated off button. However, it will automatically turn off after 30 minutes of inactivity. You can wake it up by using any control.
What is the maximum temperature of the Cosori air fryer?
The Cosori air fryer reaches a maximum temperature of 450°F, allowing you to cook a wide range of recipes. It also features Air Whisper® Technology, keeping noise levels below 55dB for a quieter cooking experience.
Does the Cosori air fryer turn off automatically?
Yes, the air fryer will automatically power off after 30 minutes of inactivity. You can also pause cooking manually by pressing the Start/Pause button.
How do I pause the air fryer to flip food?
Press the Pause button, then open the fryer to check or flip the food. If shaking is needed, remove the basket by the handle, shake it to redistribute food, and place it back in the fryer.
Can I use the Cosori air fryer to defrost food?
Yes, the air fryer includes a Defrost function, along with 11 other cooking presets such as Air Fry, Bake, Toast, Roast, and Dehydrate.
Do air fryers have a silent mode?
Many Cosori air fryers allow you to mute sounds. To turn off sound notifications, hold down the Temp and Time buttons for five seconds until you see “Sound Off” or “Sound On” on the display.
How do I remove odors from my Cosori air fryer?
To eliminate lingering smells, run the air fryer at 400°F for 20–30 minutes. Additionally, wash removable parts with soapy water and wipe down the interior.
How can I keep my air fryer clean?
To maintain cleanliness, hand-wash removable parts after each use (once cooled), wipe the interior to remove splatters, and clean the exterior regularly.
How do I turn off Wi-Fi on my Cosori air fryer?
To disconnect Wi-Fi, press and hold the Wi-Fi button for 15 seconds until the indicator light turns off.