Cosori CTO-R301S-SUSW User manual

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Smart Air Fryer Toaster Oven
User Manual
®

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3
Table of Contents Package Contents
Specifications
Specifications
Important Safeguards
Getting to Know Your Smart Air Fryer
Toaster Oven
Display
Controls
Before First Use
Cooking with Your Smart Air Fryer
Toaster Oven
Care & Maintenance
Troubleshooting
VeSync App Troubleshooting
Warranty Information
Customer Support
1 x Smart Air Fryer Toaster Oven
1 x Wire Rack
1 x Food Tray
1 x Crumb Tray
1 x Fry Basket
1 x Rotisserie Fork Set
1 x Rotisserie Handle
1 x Recipe Book
1 x User Manual
1 x Quick Reference Guide
3
4
6
7
8
10
12
29
30
31
33
34
Model CTO-R301S-SUSW
Power Supply AC 120V, 60Hz
Rated Power 1800W
Capacity
Approx. 32 qt / 30 L,
6-Slice Toaster,
13” Pizza
Temperature
Range 80°–450°F / 27°–232°C
Time Range 0–24 hr
Weight 20.5 lb / 9.3 kg
(including accessories)
Dimensions 20.1 x 16.5 x 12.1 in /
51 x 42 x 30.8 cm
Download the free VeSync app to access
original recipes and video tutorials from
the Cosori chefs, interact with our online
community, and more!

4
Follow basic safety precautions when using your smart air fryer toaster oven.
Read all instructions.
IMPORTANT SAFEGUARDS
Key Safety Points
General Safety
• Do not touch hot surfaces. Use handle.
• The outside of the oven, including the door,
is hot during and after use.
• Always use heat-resistant gloves, pads, or
oven mitts when handling hot materials,
and when placing items in or removing
items from the oven, including trays, racks,
accessories, or containers.
• Do not immerse the housing, cord, or plug
in water or liquid.
• This oven is not to be used by persons
(including children) with reduced physical,
sensory or mental capabilities, or lack of
experience and knowledge, unless they
have been given supervision or instruction
concerning use of the appliance by a person
responsible for their safety.
• Close supervision is necessary when the
oven is used by or near children.
• When the oven is not in use, and before
cleaning, unplug it from the outlet. Allow to
cool completely before putting on or taking
o parts.
• Do not use your oven if it is damaged, not
working, or if the cord or plug is damaged.
Contact Customer Support
(see page 34).
• Do not use third-party replacement parts or
accessories, as this may cause injuries.
• Do not use outdoors.
• Do not place the oven or any of its parts on a
• To avoid risk of fire or electric shock, do
not place oversized foods or metal utensils
(except ocial Cosori accessories) into the
oven.
• Do not place paper, cardboard, or non-
heat-resistant plastic into your oven, or any
materials which may catch fire or melt.
• To avoid overheating, do not use metal foil
in the oven unless directed. Use extreme
caution when using foil, and always fit foil
as securely as possible. If the foil contacts
the oven’s heating elements, this can cause
overheating and risk of fire.
While Cooking
stove, near gas or electric burners, or inside
another heated oven.
• Be extremely cautious when removing a
tray, basket, or rack if it contains hot oil,
grease, or other hot liquids.
• Do not clean with metal scouring pads.
Metal fragments can break o the pad and
touch electrical parts, creating a risk of
electric shock.
• Clean the crumb tray after using.
Accumulated grease and crumbs can
overheat and catch fire.
• Do not store anything on top of your oven
while it is operating. Do not store anything
inside your oven other than recommended
accessories.
• Do not operate with a separate remote-
control system.
• Only use as directed in this manual.
• Not for commercial use. Household use
only.
READ AND SAVE THESE INSTRUCTIONS

5
• Your oven has a 3-prong grounding plug,
and should only be used with 120V, 60Hz
electrical systems in North America. Always
plug in to a grounded electrical outlet. Do
not modify the plug in any way.
• Do not let the power cord (or any extension
cord) hang over the edge of a table or
counter, or touch hot surfaces.
• If the power-supply cord is damaged, it
must be replaced by Arovast Corporation or
similarly qualified persons in order to avoid
an electric or fire hazard. Please contact
Customer Support
(see page 34).
• The power-supply cord should be a
grounding-type 3-wire cord.
Power & Cord
Electromagnetic Fields (EMF)
This oven complies with all standards regarding
electromagnetic fields (EMF). If handled
properly and according to the instructions in
this user manual, the appliance is safe to use
based on scientific evidence available today.
Note: The heating elements do not exceed 60
minutes “on” in a two-hour period to maintain the
set temperature.
SAVE THESE
INSTRUCTIONS
• A short power-supply cord is provided to
reduce the risk resulting from becoming
entangled in or tripping over a longer cord.
• Longer extension cords are available and
may be used if care is exercised in their use.
• If a longer extension cord is used:
• The marked electrical rating of the
extension cord should be at least as
great as the electrical rating of the air
fryer toaster oven.
• The cord should be arranged so that
it will not drape over the countertop
or tabletop where it can be pulled
on by children or tripped over
unintentionally.
• The cord should be a grounding-type
3-wire cord.
• Never put baking or parchment paper
into the oven without food on top. Air
circulation can cause paper to move and
touch heating elements.
• Always use heat-safe containers. Be
extremely cautious if using containers that
aren’t metal or glass.
• Keep your oven away from flammable
materials (curtains, tablecloths, walls, etc.).
Use on a flat, stable, heat-resistant surface
away from heat sources or liquids.
• Press START/CANCEL to cancel cooking.
The indicator light will turn o. If
necessary, press and hold the TIME/TEMP
knob to turn o the display.
• Immediately press START/CANCEL to
cancel cooking and unplug your oven if
you see dark smoke coming out. Food is
burning. Wait for smoke to clear before
opening the oven door.
• When unplugging the oven, be cautious of
hot surfaces.
• Caution: 60 minutes “ON” in a two-hour
period.
220-240V120V, 60Hz

6
GETTING TO KNOW YOUR SMART AIR
FRYER TOASTER OVEN
A. Housing
B. LED Display
C. Light/Unit Button
D. Fan Button
E. START/CANCEL Button
F. FUNCTION Knob
G. TIME/TEMP Knob
H. Handle
I. Door
J. Wire Rack
K. Food Tray
L. Crumb Tray
H
I
G
F
B
R
L
J
Q
K
M
N
P
O
D
AC
E
M. Fry Basket
N. Rotisserie Forks
O. Rotisserie Handle
P. Rotisserie Shaft
Q. Heating Elements
R. Power Cord

7
DISPLAY
Cooking Functions
Timer Icon Wi-Fi®Icon*
*Note: This indicates app configuration
status. See the VeSync in-app instructions
for more information.
Light Indicator
Time Display
High Fan
Speed Indicator
Temperature Display
Temperature Icon
Rotisserie Indicator
Normal Fan
Speed Indicator
Celsius/Fahrenheit
Indicators
Toast/Bagel Darkness
Level Indicators
Cook Time
Remaining
Display
Format
< 1 hour Minutes : Seconds
≥ 1 hour Hours : Minutes
< 1 hour
Minutes
Hours Minutes
Seconds
≥ 1 hour
Note: When you’re setting cook times, the
oven display will use the Hours: Minutes
format.

8
Light/Unit Button
Fan Button
START/CANCEL Button
FUNCTION Knob
• Turns the interior light on/o. will
show on the display.
• The interior light will turn on automatically
when there is 1 minute left of cooking time.
Press to turn the light back o.
• Press and hold to switch temperature units
between Fahrenheit and Celsius.
• Cycles through fan speeds: normal, high,
and o.
• The fan can be used for all cooking
functions except Toast and Bagel. The
fan is automatically set during Air Fry and
Dehydrate.
• Press and hold until starts blinking.
This will let you pair your oven with
the VeSync app. See the VeSync in-app
instructions for more information.
• Press and hold to reset the smart air fryer
toaster oven and disconnect from Wi-Fi
(see page 11).
• Starts or cancels a cooking function.
• If preheating, cancels preheating and
starts the cooking function.
• Blinks when the oven has finished
preheating. Press the button again to start
the cooking function.
• Lights up when the oven is heating.
• Turn the knob to choose a cooking
function. The selected function will blink
on the display.
CONTROLS

9
TIME/TEMP Knob
• Turn the knob to change time/
temperature. Turn clockwise to increase,
and counterclockwise to decrease.
• Press the knob to switch between
controlling time and temperature. By
default, the knob will control time.
• Time will adjust in increments of +/– 1, 5,
10, or 15 minutes (see chart).
• Temperature will adjust in increments of
+/– 5°F.
• After a time or temperature setting is
selected, the number will flash 5 times
on the display before the setting is
confirmed.
• Display On/O: Press and hold the knob
until the display turns on/o. Note: If the oven is inactive for 30 minutes, the
display will turn o automatically. Use any control
to wake up the oven.
Pizza, Bake, Roast, Air Fry,
Broil, Cookies, Rotisserie, Warm
Below 60 minutes +/– 1-minute
increments
1–2 hours +/– 5-minute
increments
2–3 hours +/– 10-minute
increments
Above 3 hours +/– 15-minute
increments
Dehydrate, Ferment
All times +/– 30-minute
increments
Time Increment Chart

10
Setting Up VeSync App Setup
Test Run
1. Remove all packaging around and inside
the oven.
2. Place on a stable, level, heat-resistant
surface, away from anything that can be
damaged by heat.
3. Wash all accessories and clean the oven’s
interior (see page 29). Dry and place
accessories back in the oven.
1. Make sure there is no food or packaging
in the oven and plug it in.
2. Turn the FUNCTION knob to “TOAST”
and turn the TIME/TEMP knob to Level 7.
3. Press START/CANCEL to begin heating.
The button will light up, and the display
will show the timer counting down.
4. The oven will stop heating and beep
several times when finished.
BEFORE FIRST USE
A test run will help you become familiar with
your oven, make sure it’s working correctly,
and clean it of possible residues in the
process.
Note: Due to ongoing updates and
improvements, the VeSync app may be
slightly dierent than shown in the manual.
In case of any dierences, follow the in-app
instructions.
Note: For Android™ users, choose “Allow” to
use VeSync.
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.
1. To download the VeSync app, scan the
QR code or search “VeSync” in the Apple
App Store®or Google Play Store.
2. Open the VeSync app. If you already
have an account, tap Log In. To create a
new account, tap Sign Up.

11
Third-Party Voice Control
1. Once you’ve connected your oven to
VeSync, tap the More tab in the VeSync
app.
2. Follow the in-app instructions to connect
to a third-party service and set up voice
control.
You can use the VeSync app to connect
your smart oven to Amazon Alexa or Google
Assistant™ for smart voice control.
Note: You can change the name and icon
at any time by going to the smart air fryer
toaster oven screen and tapping .
3. Turn on Bluetooth®on your phone.
4. Tap +in the VeSync app and select your
smart air fryer toaster oven.
5. Follow the in-app instructions to finish
setting up your smart air fryer toaster
oven.
Disconnecting From Wi-Fi®:
• To disconnect Wi-Fi®, press and hold for
15 seconds. This will restore the smart air fryer
toaster oven’s default settings and disconnect
it from the VeSync app.
• To reconnect, please follow the instructions
in the VeSync app for adding a device.

12
Top Position
Mid
Position
Low Position
COOKING WITH YOUR SMART AIR
FRYER TOASTER OVEN
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.
Note: For easier cleanup, always leave the crumb tray at the bottom of the oven when cooking. The tray should
be beneath the heating elements. [Figure 1.1]
Note: You can use the VeSync app to control your smart air fryer toaster oven, follow in-app recipes, and more.
Figure 1.1

13
Cooking Functions Quick Reference Chart
Name Use Suggested Accessory
& Position Range
Toast
“TOAST”
• Toast or brown bread
• Manually preheat oven
• Defrost food
Wire rack at mid
position
• Darkness Level
1–7
• Temperature is
automatic
Bagel
“BAGEL”
• Toast bagels or crumpets
• Toast any bread that requires
one side to be more toasted
than the other
• When toasting bagels, place
the inside (cut side) facing
upwards. The top side will
be toasted more than the
bottom side
Wire rack at mid
position
• Darkness Level
1–7
• Temperature is
automatic
Pizza
“PIZZA”
• Melt and brown cheese and
toppings while crisping crust
• Includes automatic preheat
Wire rack at mid
position
• 150°–450°F /
66°–232°C
• 1 min–6 hr
Bake
“BAKE”
• Cook foods evenly
throughout
• Bake cakes, muns, pastries
• Includes automatic preheat
Food tray or wire rack at
low position
• 150°–450°F /
66°–232°C
• 1 min–6 hr
Roast
“ROAST”
• Cook a variety of meats and
poultry
• Food will be tender and juicy
on the inside and well-
roasted on the outside.
• Includes automatic preheat
Food tray at low
position
• 150°–400°F /
66°–204°C
• 1 min–6 hr
Air Fry
“AIRFRY”
• Cooks using intense heat
and maximized airflow
• Cook food such as french
fries and chicken wings
• Includes automatic preheat
Fry basket at mid
position
• 150°–400°F /
66°–204°C
• 1 min–6 hr
Broil
“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 automatic preheat
Food tray at top position
• 150°–450°F /
66°–232°C
• 1 min–6 hr

14
Name Use Suggested Accessory
& Position Range
Cookies
“COOKIES”
• Bake cookies and other
baked treats
• Includes automatic preheat
Food tray or wire rack at
mid position
• 150°–450°F /
66°–232°C
• 1 min–6 hr
Rotisserie
“ROTISS”
• Cook rotating roasts, such as
a whole chicken
Note: Also requires food
tray at low position to collect
drippings.
Rotisserie slots
• 150°–400°F /
66°–204°C
• 1 min–6 hr
Dehydrate
“DEHYD”
• Evenly dry out foods without
cooking
• Dry fruit or vegetable chips
Wire rack or fry basket
at mid position
• 100°–180°F /
38°–82°C
• 30 min–24 hr
Ferment
“FERMENT”
• Precisely hold low
temperatures
• Proof bread, rolls, pizza, and
dough
• Make yogurt
Food tray or wire rack at
low position
• 80°–110°F /
27°–43°C
• 30 min–12 hr
Warm
“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–12 hr

15
Convection FanVeSync App Functions
The fan circulates hot air in the oven for
faster and more even cooking. Use the high
fan speed (super convection) for crispier
results, and for air frying. You can turn the
fan on and o at any time during cooking.
The VeSync app allows you to access
additional smart functions, including those
listed below.
Remote Control
• All oven functions can be controlled remotely
(except for starting cooking, for safety reasons).
• Cooking progress can be monitored from a
distance.
In-App Cosori Recipes
• Pre-programmed recipes made by Cosori’s
in-house chefs are available in the app. These
recipes automatically set the recommended
time and temperature.
• Create and save custom recipes.
Third-Party Voice Control
• Compatible with Amazon Alexa and Google
Assistant™for voice commands.
Note: The fan cannot be used for the Toast or Bagel
functions. Fan speed is set automatically for the Air
Fry and Dehydrate functions.
Note: The VeSync app is continually updated and
app features will expand.

16
Setting
Temperature
Automatic
Preheat Time
300°F / 149°C
and below 2–4 min
325°F / 163°C 3–5 min
350°F / 177°C 4–6 min
400°F / 204°C
and above 6–8 min
Automatic Preheat
Pizza, Bake, Roast, Broil, Cookies, and Air Fry
all use automatic preheat.
Figure 2.1
1. When you start the cooking function by
pressing START/CANCEL, preheating will
start automatically. The START/CANCEL
button will light up, and the display will
show “ ”. [Figure 2.1]
• Pressing START/CANCEL again
during preheating will cancel
preheating and immediately start
cooking.
2. When preheating is finished, the oven will
beep several times and the display will
flash. This will repeat once every minute.
The START/CANCEL button will blink
continuously until pressed again.
• After 10 minutes of inactivity, the
cooking function will cancel, the oven
will stop heating, and the display will
reset.
3. Press START/CANCEL to begin cooking.
The button will light up, and the display
will show the timer counting down.
• Preheating times vary based on the
temperature setting (see chart).

17
Toast Function (“TOAST”)
This function browns the outside of your
bread while keeping the inside soft. Also
ideal for English muns and frozen waes.
Can be used to manually preheat the oven or
defrost food. Use Level 4 or higher.
Heating Elements: Top and bottom heating
elements cycle on and o.
Rack Position: Mid
1. Place up to 6 slices of bread on the wire
rack. Insert the wire rack at mid position
and close the oven door.
2. Turn the FUNCTION knob to “TOAST”,
which will blink on the display.
3. Optionally, customize the darkness level.
You can only do this before cooking starts.
a. Turn the TIME/TEMP knob to adjust
the darkness level between 1–7. The
bars underneath the toast icons
indicate the darkness level.
b. Use 1–2 for a light toast, 3–5 for a
medium toast, and 6–7 for a dark toast.
4. Press START/CANCEL to begin. The
button will light up, and the display will
show the timer counting down.
5. The oven will stop heating and beep
several times when finished.
Note:
• When setting the darkness level, consider the
type, thickness, and freshness of the bread.
• Try lighter settings for raisin toast, white
bread, and thinly-sliced bread.
• Try darker settings for rye, whole wheat,
heavier-textured bread, and fresh bread.
• Time and temperature are set automatically.
Time increases with darkness level.
Temperature is set to the highest level (450°F /
232°C). The display will show “HI”.

18
Bagel Function (“BAGEL”)
This function crisps the inside of a cut bagel
while lightly toasting the outside.
Also ideal for toasting crumpets or thick-
sliced specialty breads which require one
side to be more toasted than the other.
Heating Elements: Top heating elements
cycle on and o, and bottom heating
elements are half on and half o.
Rack Position: Mid
1. Slice the bagel in half. Center the halves
on the wire rack. Insert the wire rack at
mid position and close the oven door.
2. Turn the FUNCTION knob to “BAGEL”,
which will blink on the display.
3. Optionally, customize the darkness level.
You can only do this before cooking
starts.
a. Turn the TIME/TEMP knob to adjust
the darkness level between 1–7. The
bars underneath the toast icons
indicate the darkness level.
b. Use 1–2 for a light toast, 3–5 for a
medium toast, and 6–7 for a dark toast.
Note:
• When setting the darkness level, consider the
type, thickness, and freshness of the bagel.
• Try lighter settings for bagels that are
white, light-textured, thinner, or have
raisins.
• Try darker settings for bagels that are fresh
or have a heavier texture.
• Time and temperature are set automatically.
Time increases with darkness level.
Note: This function toasts more on the top than the
bottom. The inside (cut side) of the bagel should
face upwards for best results.
4. Press START/CANCEL to begin. The
button will light up, and the display will
show the timer counting down.
5. The oven will stop heating and beep
several times when finished.

19
Pizza Function (“PIZZA”)
This function melts and browns cheese and
toppings, while crisping crust.
Heating Elements: Top and bottom heating
elements cycle on and o.
Rack Position: Mid
1. Insert wire rack at mid position and close
the oven door.
2. Turn the FUNCTION knob to “PIZZA”,
which will blink on the display.
3. Optionally, customize the temperature
and time. You can do this anytime during
cooking (except during preheating).
a. Turn the TIME/TEMP knob to adjust
the time between 1 min–6 hr.
b. Press the TIME/TEMP knob once to
control temperature. Turn the knob
to adjust the temperature between
150°–450°F / 66°–232°C.
4. Press START/CANCEL to begin.
Preheating will start automatically. The
START/CANCEL button will light up, and
the display will show “ ”.
5. When preheating is finished, the oven will
beep several times, the display will flash,
and the START/CANCEL button will blink
continuously.
6. Remove any cardboard, plastic, paper, or
other flammable materials. Place pizza on
a pan, and place the pan on the wire rack.
Close the oven door.
7. Press START/CANCEL to begin cooking.
The button will light up, and the display
will show the timer counting down.
Note: Try a slightly longer cooking time for pizzas
with thicker crust, and an even longer cooking time
for frozen pizzas.
Note: For large pizzas, open the oven door halfway
through cooking and carefully turn the pizza 90
degrees for more even browning.
8. The oven will stop heating and beep
several times when finished.
Note: Pressing START/CANCEL again during
preheating will cancel preheating and immediately
start cooking.

20
Bake Function (“BAKE”)
This function cooks food evenly throughout.
Ideal for baking cakes, muns, brownies,
and pastries. Also ideal for cooking pre-
packaged frozen meals, including lasagna
and pot pies.
Heating Elements: Top and bottom heating
elements cycle on and o.
Rack Position: Low
1. If using the wire rack, insert at low
position and close the oven door.
2. Turn the FUNCTION knob to “BAKE”,
which will blink on the display.
3. Optionally, customize the temperature
and time. You can do this anytime during
cooking (except during preheating).
a. Turn the TIME/TEMP knob to adjust
the time between 1 min–6 hr.
b. Press the TIME/TEMP knob once to
control temperature. Turn the knob
to adjust the temperature between
150°–450°F / 66°–232°C.
4. Press START/CANCEL to begin.
Preheating will start automatically. The
START/CANCEL button will light up, and
the display will show “ ”.
5. When preheating is finished, the oven will
beep several times, the display will flash,
and the START/CANCEL button will blink
continuously.
6. Place food inside the oven. If using the
food tray, insert at low position. Close the
oven door.
7. Press START/CANCEL to begin cooking.
The button will light up, and the display
will show the timer counting down.
8. The oven will stop heating and beep
several times when finished.
Note:
• Citric acid (from oranges, lemons, and other
foods) may damage the porcelain enamel
finish of the trays or racks. Line the trays with
foil or baking paper.
• Use extreme caution when using foil, and
always fit foil as securely as possible. To avoid
overheating and risk of fire, make sure foil
does not contact the heating elements.
Note: Pressing START/CANCEL again during
preheating will cancel preheating and immediately
start cooking.